Добавил:
kiopkiopkiop18@yandex.ru t.me/Prokururor I Вовсе не секретарь, но почту проверяю Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:

Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_2920_Библиотеки_им_академика_М_И_Перельмана

.pdf
Скачиваний:
0
Добавлен:
15.09.2026
Размер:
11 Мб
Скачать
☆
ABDOMINAL PAIN
https://t.me/medicina_free
21
route and highly contagious, these viruses that cause gastroenteritis may also produce acute­onset vomiting, nausea, and diarrhea. Less common symptoms include low-grade fever, headache, chills, muscle aches, and generalized fatigue. Individuals who are otherwise healthy usually recover in 24 to 60 hours without suffer­ing lasting effects.
◆ Ovarian cyst. Torsion or hemorrhage causes
pain and tenderness in the right or left lower quadrant. Sharp and severe if the patient sud­denly stands or stoops, the pain becomes brief and intermittent if the torsion self-corrects or dull and diffuse after several hours if it doesn’t. Pain is accompanied by a slight fever, mild nau­sea and vomiting, abdominal tenderness, a pal­pable abdominal mass, and possibly amenor­rhea. Abdominal distention may occur if the cyst is large. Peritoneal irritation, or rupture and ensuing peritonitis, causes high fever and severe nausea and vomiting.
◆ Pancreatitis. Life-threatening acute pancre-
atitis produces fulminating, continuous upper abdominal pain that may radiate to both flanks and to the back. To relieve this pain, the patient may bend forward, draw his knees to his chest, or move about restlessly. Early findings include abdominal tenderness, nausea, vomiting, fever, pallor, tachycardia and, in some patients, ab­dominal rigidity, rebound tenderness, and hy­poactive bowel sounds. Turner’s sign (ecchymo­sis of the abdomen or flank) or Cullen’s sign (a bluish tinge around the umbilicus) signals he­morrhagic pancreatitis. Jaundice may occur as inflammation subsides.
Chronic pancreatitis produces severe left­upper-quadrant or epigastric pain that radiates to the back. Abdominal tenderness, a midepigastric mass, jaundice, fever, and splenomegaly may occur. Steatorrhea, weight loss, maldigestion, and diabetes mellitus are common.
◆ Pelvic inflammatory disease. Pain in the
right or left lower quadrant ranges from vague discomfort worsened by movement to deep, severe, and progressive pain. Sometimes, metr­orrhagia precedes or accompanies the onset of pain. Extreme pain accompanies cervical or adnexal palpation. Associated findings include abdominal tenderness, a palpable abdominal or pelvic mass, fever, occasional chills, nausea, vomiting, discomfort on urination, and abnor­mal vaginal bleeding or a purulent vaginal dis­charge.
◆ Perforated ulcer. In a life-threatening perfo-
rated ulcer, sudden, severe, and prostrating epigastric pain may radiate through the ab­domen to the back or right shoulder. Other signs and symptoms include boardlike abdomi­nal rigidity, tenderness with guarding, general­ized rebound tenderness, absent bowel sounds, grunting and shallow respirations and, in many cases, fever, tachycardia, hypotension, and syncope.
◆ Peritonitis. In this life-threatening disorder,
sudden and severe pain can be diffuse or local­ized in the area of the underlying disorder; movement worsens the pain. The degree of ab­dominal tenderness usually varies according to the extent of disease. Typical findings include fever; chills; nausea; vomiting; hypoactive or absent bowel sounds; abdominal tenderness, distention, and rigidity; rebound tenderness and guarding; hyperalgesia; tachycardia; hypoten­sion; tachypnea; and positive psoas and obtura­tor signs.
◆ Pleurisy. Pleurisy may produce upper ab-
dominal or costal margin pain referred from the chest. Characteristic sharp, stabbing chest pain increases with inspiration and movement. Many patients have a pleural friction rub and rapid, shallow breathing; some have a low-grade fever.
◆ Pneumonia. Lower-lobe pneumonia can
cause pleuritic chest pain and referred, severe upper abdominal pain, tenderness, and rigidity that diminish with inspiration. It can also cause fever, shaking chills, achiness, headache, blood­tinged or rusty sputum, dyspnea, and a dry, hacking cough. Accompanying signs include crackles, egophony, decreased breath sounds, and dullness on percussion.
◆ Pneumothorax. Pneumothorax is a poten-
tially life-threatening disorder that can cause re­ferred pain from the chest to the upper ab­domen and costal margin. Characteristic chest pain arises suddenly and worsens with deep in­spiration or movement. Accompanying signs and symptoms include anxiety, dyspnea, cyanosis, decreased or absent breath sounds over the affected area, tachypnea, and tachycar­dia. Watch for asymmetrical chest movements on inspiration.
◆ Prostatitis. Vague abdominal pain or dis-
comfort in the lower abdomen, groin, per­ineum, or rectum may develop. Other findings include dysuria, urinary frequency and ur­gency, fever, chills, low back pain, myalgia,
22 ABDOMINAL PAIN
https://t.me/medicina_free
arthralgia, and nocturia. Scrotal pain, penile pain, and pain on ejaculation may occur in chronic cases.
◆ Pyelonephritis (acute). Progressive lower
quadrant pain in one or both sides, flank pain, and CVA tenderness characterize pyelonephri­tis. Pain may radiate to the lower midabdomen or the groin. Additional signs and symptoms in­clude abdominal and back tenderness, high fever, shaking chills, nausea, vomiting, and uri­nary frequency and urgency.
◆ Renal calculi. Depending on their location,
calculi may cause severe abdominal or back pain. However, the classic symptom is severe, colicky pain that travels from the CVA to the flank, suprapubic region, and external genitalia. The pain may be excruciating or dull and con­stant and may be accompanied by agitation, nausea, vomiting, abdominal distention, fever, chills, hypertension, and urinary urgency with hematuria and dysuria.
◆ Sickle cell crisis. Sudden, severe abdominal
pain may accompany chest, back, hand, or foot pain. Associated signs and symptoms include weakness, aching joints, dyspnea, and scleral jaundice.
◆ Smallpox (variola major). Worldwide eradi-
cation of smallpox was achieved in 1977; the United States and Russia have the only known storage sites for the virus, which is considered a potential agent for biological warfare. Initial signs and symptoms include high fever, malaise, prostration, severe headache, back­ache, and abdominal pain. A maculopapular rash develops on the oral mucosa, pharynx, face, and forearms and then spreads to the trunk and legs. Within 2 days, the rash becomes vesicular and later pustular. The lesions develop at the same time, appear identical, and are more prominent on the face and extremities. The pustules are round, firm, and embedded in the skin. After 8 to 9 days, the pustules form a crust, which later separates from the skin, leav­ing a pitted scar. Death may result from en­cephalitis, extensive bleeding, or secondary infection.
◆ Splenic infarction. Fulminating pain in the
left upper quadrant occurs with chest pain that may worsen on inspiration. Pain commonly ra­diates to the left shoulder with splinting of the left diaphragm, abdominal guarding and, occa­sionally, a splenic friction rub.
◆ Systemic lupus erythematosus. General-
ized abdominal pain is unusual in this disease but may occur after meals. Butterfly rash, pho-
tosensitivity, alopecia, mucous membrane ul­cers, and nondeforming arthritis are character­istic signs. Other common signs and symptoms include anorexia, vomiting, abdominal tender­ness with guarding, abdominal distention after meals, fatigue, fever, and weight loss. Precor­dial chest pain and a pericardial rub may also occur.
◆ Ulcerative colitis. Ulcerative colitis may be-
gin with vague abdominal discomfort that leads to cramping lower abdominal pain. As the dis­order progresses, pain may become steady and diffuse, increasing with movement and cough­ing. The most common symptom—recurrent and possibly severe diarrhea with blood, pus, and mucus—may relieve the pain. The abdomen may feel soft and extremely tender. High­pitched, infrequent bowel sounds may accom­pany nausea, vomiting, anorexia, weight loss, and mild, intermittent fever.
◆ Uremia. Characterized by generalized or
periumbilical pain that shifts and varies in in­tensity, uremia causes diverse GI signs and symptoms, such as nausea, vomiting, anorexia, and diarrhea. Other findings may include bleed­ing, abdominal tenderness that changes in loca­tion and intensity, visual disturbances, headache, decreased LOC, vertigo, and oliguria or anuria. Chest pain may occur secondary to pericardial effusion. Localized or diffuse pruri­tus is common.
O
THER CAUSES
◆ Drugs. Salicylates and nonsteroidal anti-in-
flammatories commonly cause burning, gnaw­ing pain in the left upper quadrant or epigastric area as well as nausea and vomiting.
◆ Insect toxins. Generalized, cramping ab-
dominal pain usually occurs with low-grade fever, nausea, vomiting, abdominal rigidity, tremors, and burning sensations in the hands or feet.
S
PECIAL CONSIDERATIONS
Help the patient find a comfortable position to ease his distress. The patient should lie in a supine position, with his head flat on the table, arms at his sides, and knees slightly flexed to re­lax the abdominal muscles. Monitor him closely because abdominal pain can signal a life­threatening disorder. Especially important indications include tachycardia, hypotension, clammy skin, abdominal rigidity, rebound tenderness, a change in the pain’s location or intensity, or sudden relief from the pain.
ABDOMINAL RIGIDITY 23
https://t.me/medicina_free
Withhold analgesics from the patient be­cause they may mask symptoms. Also withhold food and fluids because surgery may be need­ed. Prepare for I.V. infusion and insertion of a nasogastric or other intestinal tube. Peritoneal lavage or abdominal paracentesis may be re­quired.
You may have to prepare the patient for a di­agnostic procedure, such as a pelvic and rectal examination; blood, urine, and stool tests; X­rays; barium studies; ultrasonography; en­doscopy; and biopsy.
P
EDIATRIC POINTERS
Because children commonly have difficulty describing abdominal pain, pay close attention to nonverbal clues, such as wincing, lethargy, or unusual positioning (such as a side-lying position with knees flexed to the abdomen). Observing the child while he coughs, walks, or climbs may offer some diagnostic clues. Also, remember that a parent’s description of the child’s complaints is a subjective interpretation of what the parent believes is wrong.
Abdominal pain in children may signal a more serious disorder or a disorder that pro­duces different associated signs and symptoms than in adults. For example, appendicitis is more likely to result in rupture and death in children, and vomiting may be its only other sign. Acute pyelonephritis may cause abdomi­nal pain, vomiting, and diarrhea, but not the classic urologic signs found in adults. Peptic ul­cer, which is becoming increasingly common in teenagers, causes nocturnal pain and colic that may not be relieved by food, unlike peptic ulcer in adults.
Abdominal pain in children can also result from lactose intolerance, allergic-tension­fatigue syndrome, volvulus, Meckel’s diverticu­lum, intussusception, mesenteric adenitis, diabetes mellitus, juvenile rheumatoid arthritis, and many uncommon disorders, such as heavy metal poisoning. Remember, too, that a child’s complaint of abdominal pain may reflect an emotional need, such as a wish to avoid school or to gain adult attention.
G
ERIATRIC POINTERS
Advanced age may decrease the manifesta­tions of acute abdominal disease. Pain may be less severe, fever less pronounced, and signs of peritoneal inflammation diminished or ab­sent.
EXAMINATION TIP
Recognizing voluntary rigidity
Distinguishing voluntary from involuntary abdominal rigidity is a must for accurate as­sessment. Review the comparison below so that you can quickly tell the two apart.
Voluntary rigidity
◆ Usually symmetrical
◆ More rigid on inspiration (expiration caus-
es muscle relaxation)
◆ Eased by relaxation techniques, such as
positioning the patient comfortably and talking to him in a calm, soothing manner
◆ Painless when the patient sits up using his
abdominal muscles alone
Involuntary rigidity
◆ Usually asymmetrical
◆ Equally rigid on inspiration and expiration
◆ Unaffected by relaxation techniques
◆ Painful when the patient sits up using his
abdominal muscles alone
Abdominal rigidity
[Abdominal muscle spasm, involuntary guarding]
Detected by palpation, abdominal rigidity refers to abnormal muscle tension or inflexibility of the abdomen. Rigidity may be voluntary or in­voluntary. Voluntary rigidity reflects the patient’s fear or nervousness upon palpation; involuntary rigidity reflects potentially life-threatening peritoneal irritation or inflammation. (See Rec- ognizing voluntary rigidity.)
Involuntary rigidity most commonly results from GI disorders but may also result from pul­monary and vascular disorders and from the effects of insect toxins. It’s usually accompanied by fever, nausea, vomiting, and abdominal ten­derness, distention, and pain.
EMERGENCY INTERVENTIONS After pal-
pating abdominal rigidity, quickly take the patient’s vital signs. Even though the patient may not appear gravely ill or have markedly abnormal vital signs, abdominal rigidity calls for emergency interventions.
Prepare to administer oxygen and to insert an I.V. catheter for fluid and blood replacement. The patient may require drugs to support blood
24 ABDOMINAL RIGIDITY
https://t.me/medicina_free
pressure. Also prepare him for catheterization, and monitor intake and output.
A nasogastric tube may have to be inserted to relieve abdominal distention. Because emergency surgery may be necessary, prepare the patient for laboratory tests and X-rays.
H
ISTORY AND PHYSICAL EXAMINATION
If the patient’s condition allows further assess­ment, take a brief history. Find out when the ab­dominal rigidity began. Is it associated with ab­dominal pain? If so, did the pain begin at the same time? Determine whether the rigidity is lo­calized or generalized. Is it always present? Has its location changed or remained constant? Next, ask about aggravating or alleviating fac­tors, such as position changes, coughing, vomit­ing, elimination, and walking.
Then explore other signs and symptoms. In­spect the abdomen for peristaltic waves, which may be visible in very thin patients. Also check for a visibly distended bowel loop. Next, auscul­tate bowel sounds. Perform light palpation to locate the rigidity and to determine its severity. Avoid deep palpation, which may exacerbate abdominal pain. Finally, check for poor skin turgor and dry mucous membranes, which indi­cate dehydration.
M
EDICAL CAUSES
◆ Abdominal aortic aneurysm (dissecting).
Mild to moderate abdominal rigidity occurs in ab­dominal aortic aneurysm, a life-threatening dis­order. It’s typically accompanied by constant up­per abdominal pain that may radiate to the lower back. The pain may worsen when the patient lies down and may be relieved when he leans for­ward or sits up. Before rupture, the aneurysm may produce a pulsating mass in the epigastri­um, accompanied by a systolic bruit over the aor­ta. However, the mass stops pulsating after rup­ture. Associated signs and symptoms include mottled skin below the waist, absent femoral and pedal pulses, blood pressure that’s lower in the legs than in the arms, and mild to moderate ab­dominal tenderness with guarding. Significant blood loss causes signs of shock, such as tachy­cardia, tachypnea, and cool, clammy skin.
◆ Mesenteric artery ischemia. This life-
threatening disorder is characterized by 2 to 3 days of persistent, low-grade abdominal pain and diarrhea leading to sudden, severe abdomi­nal pain and rigidity. Rigidity occurs in the cen­tral or periumbilical region and is accompanied
by severe abdominal tenderness, fever, and signs of shock, such as tachycardia and hy­potension. Other findings may include vomiting, anorexia, diarrhea, and constipation. Always suspect mesenteric artery ischemia in patients older than age 50 who have a history of heart failure, arrhythmias, cardiovascular infarct, or hypotension.
◆ Peritonitis. Depending on the cause of peri-
tonitis, abdominal rigidity may be localized or generalized. For example, if an inflamed appen­dix causes local peritonitis, rigidity may be local­ized in the right lower quadrant. If a perforated ulcer causes widespread peritonitis, rigidity may be generalized and, in severe cases, boardlike.
Peritonitis also causes sudden and severe ab­dominal pain that can be localized or general­ized. It can also produce abdominal tenderness and distention, rebound tenderness, guarding, hyperalgesia, hypoactive or absent bowel sounds, nausea, and vomiting. Most patients also experience fever, chills, tachycardia, tachypnea, and hypotension.
◆ Pneumonia. In lower lobe pneumonia, se-
vere upper abdominal pain and tenderness ac­company rigidity that diminishes with inspira­tion. Associated signs and symptoms include blood-tinged or rusty sputum, dyspnea, achi­ness, headache, fever, sudden onset of chills, crackles, egophony, decreased breath sounds, dullness on percussion, and a dry, hacking cough.
O
THER CAUSES
◆ Insect toxins. Insect stings and bites, espe-
cially black widow spider bites, release toxins that can produce generalized cramping abdomi­nal pain, usually accompanied by rigidity. These toxins may also cause low-grade fever, nausea, vomiting, tremors, and burning sensations in the hands and feet. Some patients develop in­creased salivation, hypertension, paresis, and hyperactive reflexes. Children commonly are restless, have an expiratory grunt, and keep their legs flexed.
S
PECIAL CONSIDERATIONS
Continue to monitor the patient closely for signs of shock. Position him as comfortably as possi­ble in a supine position, with his head flat on the table, arms at his sides, and knees slightly flexed to relax the abdominal muscles. Because analgesics may mask symptoms, withhold them until a tentative diagnosis has been made. Also withhold food and fluids and administer an I.V.
ACCESSORY MUSCLE USE
https://t.me/medicina_free
25
antibiotic because emergency surgery may be required. Prepare the patient for diagnostic tests, which may include blood, urine, and stool studies; chest and abdominal X-rays; a comput­ed tomography scan; magnetic resonance imag­ing; peritoneal lavage; and gastroscopy or colonoscopy. A pelvic or rectal examination may also be done.
P
EDIATRIC POINTERS
Voluntary rigidity may be difficult to distinguish from involuntary rigidity if associated pain makes the child restless, tense, or apprehensive. However, in any child with suspected involun­tary rigidity, your priority is early detection of dehydration and shock, which can rapidly be­come life-threatening.
Abdominal rigidity in children can stem from gastric perforation, hypertrophic pyloric steno­sis, duodenal obstruction, meconium ileus, in­tussusception, cystic fibrosis, celiac disease, and appendicitis.
G
ERIATRIC POINTERS
Advanced age and impaired cognition decrease pain perception and intensity. Weakening of ab­dominal muscles may decrease muscle spasms and rigidity.
Accessory muscle use
When breathing requires extra effort, the acces­sory muscles—the sternocleidomastoid, sca­lene, pectoralis major, trapezius, internal inter­costals, and abdominal muscles—stabilize the thorax during respiration. Some accessory mus­cle use normally takes place during such activi­ties as singing, talking, coughing, defecating, and exercising. (See Accessory muscles: Loca- tions and functions, page 26.) However, more pronounced use of these muscles may signal acute respiratory distress, diaphragmatic weak­ness, or fatigue. It may also result from chronic respiratory disease. Typically, the extent of ac­cessory muscle use reflects the severity of the underlying cause.
EMERGENCY INTERVENTIONS If the
patient displays increased accessory mus­cle use, immediately look for signs of acute res­piratory distress. These include decreased level of consciousness, shortness of breath when speaking, tachypnea, intercostal and sternal retractions, cyanosis, external breath sounds (such as wheezing or stridor), diaphoresis,
nasal flaring, and extreme apprehension or agi­tation. Quickly auscultate for abnormal, dimin­ished, or absent breath sounds. Check for airway obstruction and, if detected, attempt to restore airway patency. Insert an airway or intu­bate the patient. Then begin suctioning and manual or mechanical ventilation. Assess oxy­gen saturation using pulse oximetry, if avail­able. Administer oxygen; if the patient has chronic obstructive pulmonary disease (COPD), use only a low flow rate for mild COPD exacer­bations. You may need to use a high flow rate initially, but be attentive to the patient’s respira­tory drive. Giving too much oxygen may decrease the patient’s respiratory drive. An I.V. catheter may be required.
H
ISTORY AND PHYSICAL
EXAMINATION
If the patient’s condition allows, examine him more closely. Ask him about the onset, dura­tion, and severity of associated signs and symp­toms, such as dyspnea, chest pain, cough, and fever.
Explore his medical history, focusing on res­piratory disorders, such as infection or COPD. Ask about cardiac disorders, such as heart fail­ure, which may lead to pulmonary edema; also inquire about neuromuscular disorders, such as amyotrophic lateral sclerosis, which may affect respiratory muscle function. Note a history of allergies or asthma. Because collagen vascular diseases can cause diffuse infiltrative lung dis­ease, ask about such conditions as rheumatoid arthritis and lupus erythematosus.
Ask about recent trauma, especially to the spine or chest. Find out if the patient has re­cently undergone pulmonary function tests or received respiratory therapy. Ask about smoking and about occupational exposure to chemical fumes or mineral dusts such as asbestos. Ex­plore the family history for such disorders as cystic fibrosis and neurofibromatosis, which can cause diffuse infiltrative lung disease.
Perform a detailed chest examination, noting abnormal respiratory rate, pattern, or depth. As­sess the color, temperature, and turgor of the patient’s skin, and check for clubbing. (See Ac-
cessory muscle use: Causes and associated findings, page 27.)
M
EDICAL CAUSES
◆ Acute respiratory distress syndrome
(ARDS). In ARDS—a life-threatening disor­der—accessory muscle use increases in
26 ACCESSORY MUSCLE USE
https://t.me/medicina_free
Accessory muscles: Locations and functions
Physical exertion and pulmonary disease usu­ally increase the work of breathing, taxing the diaphragm and external intercostal muscles. When this happens, accessory muscles provide the extra effort needed to maintain respira­tions. The upper accessory muscles assist with inspiration, whereas the upper chest, sternum, internal intercostal, and abdominal muscles assist with expiration.
With inspiration, the scalene muscles ele­vate, fix, and expand the upper chest. The ster­nocleidomastoid muscles raise the sternum,
Scalene muscle
External intercostal muscles
expanding the chest’s anteroposterior and lon­gitudinal dimensions. The pectoralis major ele­vates the chest, increasing its anteroposterior size, and the trapezius raises the thoracic cage.
With expiration, the internal intercostals de­press the ribs, decreasing the chest size. The abdominal muscles pull the lower chest down, depress the lower ribs, and compress the ab­dominal contents, which exerts pressure on the chest.
Sternocleidomastoid muscle
Trapezius muscle
Pectoralis major muscle
response to hypoxia. It’s accompanied by intercostal, supracostal, and sternal retractions on inspiration and by grunting on expiration. Other characteristics include tachypnea, dysp­nea, diaphoresis, diffuse crackles, and a cough with pink, frothy sputum. Worsening hypoxia produces anxiety, tachycardia, and mental sluggishness.
◆ Airway obstruction. An acute upper airway
obstruction can be life-threatening; fortunately, most obstructions are subacute or chronic. Typi­cally, this disorder increases accessory muscle use. Its most telling sign, however, is inspiratory stridor. Associated signs and symptoms include dyspnea, tachypnea, gasping, wheezing, cough-
Abdominal rectus muscle
ing, drooling, intercostal retractions, cyanosis, and tachycardia.
◆ Amyotrophic lateral sclerosis (ALS). Be-
cause ALS affects the diaphragm more than the accessory muscles, increased accessory muscle use is characteristic of this disorder. Other signs and symptoms include fascicula­tions, muscle atrophy and weakness, spastici­ty, bilateral Babinski’s reflex, and hyperactive deep tendon reflexes. Incoordination makes carrying out routine activities difficult for the patient. Associated signs and symptoms in­clude impaired speech; difficulty chewing or swallowing and breathing; urinary frequency and urgency; and, occasionally, choking and
ACCESSORY MUSCLE USE
https://t.me/medicina_free
SIGNS & SYMPTOMS
Accessory muscle use: Causes and associated findings
Major associated signs and symptoms
27
Common causes
Acute respiratory distress syndrome
Airway obstruction
Amyotrophic lateral sclerosis
Asthma
Chronic bronchitis
Diffuse infiltrative (or fibrotic) lung disease
Emphysema
Pneumonia
Pulmonary edema
Pulmonary embolism
Spinal cord injury
Thoracic injury
Barrel chest
Chest pain
Cough
Crackles
Cyanosis
Diaphoresis
Dyspnea
Fever
Muscle
weakness
Paralysis
Stridor
Tachycardia
Tachypnea
Wheezing
•
•
•••
•
• • • ••••
•
•
• ••••• •••
•••••• ••
••• • •
•••• •
••••••• ••
••• • •••
•••• •• •••
••
•
•
•
•
excessive drooling. (Note: Other neuromuscu­lar disorders may produce similar signs and symptoms.) Although the patient’s mental sta­tus remains intact, his poor prognosis may cause periodic depression.
◆ Asthma. During acute asthma attacks, the
patient usually displays increased accessory muscle use accompanied by severe dyspnea, tachypnea, wheezing, productive cough, nasal flaring, and cyanosis. Auscultation reveals faint or possibly absent breath sounds, musical crackles, and rhonchi. Other signs and symp­toms include tachycardia, diaphoresis, and ap-
prehension caused by air hunger. Chronic asth­ma may also cause barrel chest.
◆ Chronic bronchitis. In this form of COPD,
increased accessory muscle use may be chronic and is preceded by a productive cough and ex­ertional dyspnea. Chronic bronchitis is accom­panied by wheezing, basal crackles, tachypnea, jugular vein distention, prolonged expiration, barrel chest, and clubbing. Patients with chronic bronchitis are sometimes called “blue bloaters” because of the cyanosis and weight gain from edema that commonly occur. Low-grade fever may occur with secondary infection.
28 ACCESSORY MUSCLE USE
https://t.me/medicina_free
◆ Diffuse infiltrative (or fibrotic) lung dis-
ease. In diffuse infiltrative lung disease, pro­gressive pulmonary degeneration eventually in­creases accessory muscle use. Typically, though, the patient reports progressive dyspnea on ex­ertion as his chief complaint. He may also have a cough, anorexia, weakness, fatigue, vague chest pain, tachypnea, and crackles at the base of the lungs.
◆ Emphysema. Increased accessory muscle
use occurs with progressive exertional dyspnea and a minimally productive cough in this form of COPD. These patients are sometimes called “pink puffers” because of their characteristic pursed-lip breathing, tachypnea, and a pink or red complexion. Associated signs and symp­toms include peripheral cyanosis, anorexia, weight loss, malaise, barrel chest, and clubbing. Auscultation reveals distant heart sounds; per­cussion detects hyperresonance.
◆ Pneumonia. Bacterial pneumonia initially
produces sudden high fever with chills. Associ­ated signs and symptoms include increased ac­cessory muscle use, chest pain, productive cough, dyspnea, tachypnea, tachycardia, expira­tory grunting, cyanosis, diaphoresis, and fine crackles.
◆ Pulmonary edema. In acute pulmonary ede-
ma, increased accessory muscle use is accom­panied by dyspnea, tachypnea, orthopnea, crepitant crackles, wheezing, and a cough with pink, frothy sputum. Other findings include rest­lessness, tachycardia, ventricular gallop, and cool, clammy, cyanotic skin.
◆ Pulmonary embolism. Although signs and
symptoms vary with the size, number, and loca­tion of the emboli, this life-threatening disorder may cause increased accessory muscle use. Common findings include dyspnea and tachyp­nea that may be accompanied by pleuritic or substernal chest pain. Other signs and symp­toms include restlessness, anxiety, tachycardia, productive cough, low-grade fever and, with a large embolus, hemoptysis, cyanosis, syncope, jugular vein distention, scattered crackles, and focal wheezing.
◆ Spinal cord injury. An injury below Ll typi-
cally doesn’t affect the diaphragm or accessory muscles, whereas an injury between C3 and C5 affects the upper respiratory muscles and di­aphragm, causing increased accessory muscle use.
Associated signs and symptoms of spinal cord injury include unilateral or bilateral Babin­ski’s reflex; hyperactive deep tendon reflexes;
spasticity; and variable or total loss of pain and temperature sensation, proprioception, and mo­tor function. Horner’s syndrome (unilateral pto­sis, pupillary constriction, facial anhidrosis) may occur in lower cervical cord injury.
◆ Thoracic injury. Increased accessory mus-
cle use may occur, depending on the type and extent of the injury. Associated signs and symptoms of this potentially life-threatening injury include an obvious chest wound or bruising, chest pain, dyspnea, cyanosis, and agitation. Signs of shock, such as tachycardia and hypotension, occur with significant blood loss.
O
THER CAUSES
◆ Diagnostic tests and treatments. Pul-
monary function tests, incentive spirometry, and intermittent positive-pressure breathing can in­crease accessory muscle use.
S
PECIAL CONSIDERATIONS
If the patient is alert, elevate the head of the bed to make his breathing as easy as possible. En­courage him to get plenty of rest and to drink plenty of fluids to liquefy secretions. Administer oxygen. Prepare him for such tests as pul­monary function studies, chest X-rays, lung scans, arterial blood gas analysis, complete blood count, and sputum culture.
If appropriate, stress how smoking endangers the patient’s health, and refer him to an orga­nized program to stop smoking. Also, teach him how to prevent infection. Explain the purpose of prescribed drugs, such as bronchodilators and mucolytics, and make sure he knows their dosage and schedule.
P
EDIATRIC POINTERS
Because infants and children tire sooner than adults, they can develop respiratory failure from respiratory distress more quickly than adults. Upper airway obstruction—caused by edema, bronchospasm, or a foreign object—usually pro­duces respiratory distress and increased acces­sory muscle use. Disorders associated with air­way obstruction include acute epiglottitis, croup, pertussis, cystic fibrosis, and asthma. Supraventricular, intercostal, or abdominal re­tractions indicate accessory muscle use.
G
ERIATRIC POINTERS
Because of age-related loss of elasticity in the rib cage, accessory muscle use may be part of an elderly person’s normal breathing pattern.
AGITATION
https://t.me/medicina_free
29
P
ATIENT COUNSELING
Because labored breathing can make the patient apprehensive, provide a calm environment and encourage him to perform relaxation techniques while you provide interventions to reduce the work of breathing.
Agitation
Agitation refers to a state of hyperarousal, in­creased tension, and irritability that can lead to confusion, hyperactivity, and overt hostility. Agi­tation can result from a toxic (poisons), meta­bolic, or infectious cause; brain injury; and psy­chiatric and various other disorders. It can also result from pain, fever, anxiety, drug use or withdrawal, and hypersensitivity reactions. It can arise gradually or suddenly and last for minutes or months. Whether it’s mild or severe, agitation worsens with increased fever, pain, stress, or external stimuli.
Agitation alone merely signals a change in the patient’s condition, but it can be a useful in­dicator of a developing disorder. Obtaining a good history is critical to determining the un­derlying cause of agitation.
H
ISTORY AND PHYSICAL EXAMINATION
Determine the severity of the patient’s agitation by examining the number and quality of agita­tion-induced behaviors, such as emotional labil­ity, confusion, memory loss, hyperactivity, and hostility. Obtain a history from the patient or a family member, including diet, known allergies, and use of prescribed or over-the-counter drugs, including supplements and herbal medi­cines.
Ask if the patient is being treated for any ill­nesses. Has he had any recent infections, trau­ma, stress, or changes in sleep patterns? Check for signs of drug abuse, such as needle tracks and dilated pupils, and ask about alcohol in­take. Obtain baseline vital signs and neurologic status for future comparison.
M
EDICAL CAUSES
◆ Affective disturbances. Agitation may occur
in either the depressive or manic phase of affec­tive disturbances and in personality disorders, such as borderline and antisocial personality disorders. The hallmark of the depressive form is depressed mood upon awakening, which eas­es during the day. Chronic anxiety may be mild
or severe. Psychomotor agitation may be char­acterized by an inability to sit still, hand-wring­ing, pacing, and irritability. Other findings in the manic state may include decreased sleep, pres­sured speech, and grandiosity.
◆ Alcohol withdrawal syndrome. Mild to
severe agitation occurs with hyperactivity, tremors, and anxiety. In delirium tremens, the potentially life-threatening stage of alcohol withdrawal, severe agitation accompanies hal­lucinations, insomnia, diaphoresis, and de­pressed mood. Pulse rate and temperature rise as withdrawal progresses; status epilepticus, cardiac arrhythmias, and shock can occur.
◆ Anxiety. Anxiety is a common symptom that
produces varying degrees of agitation. The pa­tient may be unaware of his anxiety or may complain of it without knowing its cause. Other findings may include nausea, vomiting, diar­rhea, cool and clammy skin, frontal headache, back pain, insomnia, and tremors.
◆ Chronic renal failure. Moderate to severe
agitation occurs in chronic renal failure, which is marked by confusion and memory loss. The agitation is accompanied by diverse signs and symptoms, such as nausea, vomiting, anorex­ia, mouth ulcers, ammonia breath odor, GI bleeding, pallor, edema, dry skin, and uremic frost.
◆ Dementia. Mild to severe agitation can re-
sult from many common dementia syndromes, such as Alzheimer’s and Huntington’s diseases. The patient may display a decrease in memory, attention span, problem-solving ability, and alertness. Hypoactivity, wandering behavior, hallucinations, aphasia, and insomnia may also occur.
◆ Drug withdrawal syndrome. Findings
vary with the drug but include mild to severe agitation, anxiety, abdominal cramps, di­aphoresis, and anorexia. In opioid or barbitu­rate withdrawal, a decreased level of con­sciousness (LOC), seizures, and elevated blood pressure, heart rate, and respiratory rate can also occur.
◆ Hepatic encephalopathy. Agitation occurs
only in fulminating encephalopathy. Other find­ings include drowsiness, stupor, fetor hepaticus, asterixis, and hyperreflexia.
◆ Hypersensitivity reaction. Moderate to se-
vere agitation may be the first sign of a hyper­sensitivity reaction. Depending on the severity of the reaction, agitation may be accompanied by urticaria, pruritus, and facial and dependent edema.
30 ALOPECIA
https://t.me/medicina_free
In anaphylactic shock, a potentially life­threatening reaction, agitation occurs rapidly along with apprehension, urticaria or diffuse erythema, warm and moist skin, paresthesia, pruritus, edema, dyspnea, wheezing, stridor, hy­potension, and tachycardia. Abdominal cramps, vomiting, and diarrhea can also occur.
◆ Hypoxemia. Beginning as restlessness, agi-
tation rapidly worsens in hypoxemia. The pa­tient may be confused and have impaired judg­ment and motor coordination. He may also have tachycardia, tachypnea, dyspnea, and cyanosis.
◆ Increased intracranial pressure (ICP). Agi-
tation usually precedes other early signs and symptoms, such as headache, nausea, and vomiting. Increased ICP produces respiratory changes, such as Cheyne-Stokes, cluster, ataxic, or apneustic breathing; sluggish, nonreactive, or unequal pupils; widening pulse pressure; tachy­cardia; decreased LOC; seizures; and motor changes, such as decerebrate or decorticate posture.
◆ Organic brain syndrome. In organic brain
syndrome, agitation is manifested as hyperac­tivity, emotional lability, confusion, and memory loss. Slurred or incoherent speech and paranoid behavior may also occur.
◆ Post–head trauma syndrome. Shortly—or
even years—after injury, mild to severe agitation develops, characterized by disorientation, loss of concentration, angry outbursts, and emotion­al lability. Fatigue, wandering behavior, and poor judgment are other findings.
◆ Vitamin B
from mild to severe. Other effects include seizures, peripheral paresthesia, and dermatitis. Oculogyric crisis may also occur.
deficiency. Agitation can range
6
tient’s vital signs and neurologic status while the cause is being determined. Eliminate stres­sors that can increase agitation. Provide ade­quate lighting, maintain a calm environment, and allow the patient ample time to sleep. En­sure a balanced diet, and provide vitamin sup­plements and hydration.
Remain calm, nonjudgmental, and nonargu­mentative. If appropriate, prepare the patient for diagnostic tests, such as computed tomography scanning, skull X-rays, magnetic resonance imaging, and blood studies.
P
EDIATRIC POINTERS
A common sign in children, agitation accompa­nies the expected childhood diseases as well as more severe disorders that can lead to brain dam­age: hyperbilirubinemia, phenylketonuria, vitamin A deficiency, hepatitis, frontal lobe syndrome, in­creased ICP, and lead poisoning. In neonates, agi­tation can stem from alcohol or drug withdrawal if the mother abused these substances.
When evaluating an agitated child, remember to use words that he can understand and to look for nonverbal clues. For instance, if you suspect that pain is causing agitation, ask him to tell you where it hurts, but be sure to watch for other indicators, such as wincing, crying, or moving away.
G
ERIATRIC POINTERS
Any deviation from an older person’s usual ac­tivities or rituals may provoke anxiety or agita­tion. Any environmental change, such as a transfer to a nursing home or a visit from a stranger in the patient’s home, may trigger a need for treatment.
O
THER CAUSES
◆ Drugs. Mild to moderate agitation, which is
commonly dose related, is an adverse effect of central nervous system stimulants—especially appetite suppressants, such as amphetamines and amphetamine-like drugs; sympathomimet­ics such as ephedrine; caffeine; and theo­phylline.
◆ Radiographic contrast media. Injection of
a contrast medium during various diagnostic tests may produce moderate to severe agitation along with other signs of hypersensitivity.
S
PECIAL CONSIDERATIONS
Because agitation can be an early sign of many different disorders, continue to monitor the pa-
Alopecia
[Hair loss]
Alopecia usually develops gradually and affects the scalp; it may be diffuse or patchy and can be classified as scarring or nonscarring. Scarring alopecia (permanent hair loss) results from hair follicle destruction, which smoothes the skin surface, erasing follicular openings. Nonscarring alopecia (temporary hair loss) results from hair follicle damage that spares follicular openings, allowing future hair growth.
One of the most common causes of alopecia is the use of certain chemotherapeutic drugs. Alopecia may also result from the use of other drugs; radiation therapy; a skin, connective