4. Herpes Virus Infections.

***) Herpes Zoster occurs after infected with: Q2012

1. Smallpox

2. Chickenpox

3. Measles

4. Mumps

5. Rubella

Answer: B* Chickenpox

5. Infectious Mononucleosis.

***) All of the following are true about infectious mononucleosis, except:

1. Caused by Epstein-Barr herpes virus

2. Myocarditis may occur

3. Splenic rupture is a recognized complication

4. Liver function tests are usually normal

5. Blood smear shows atypical large lymphocytes and lymphocytosis

Answer: D* Liver function tests are usually normal

***) All of the following about infectious mononucleosis (glandular fever) is correct, except:

1. Sore throat

2. Cervical lymphadenopathy

3. Ampicillin is a drug of choice

4. Splenomegaly

5. Mild hepatitis is common

Answer: C* Ampicillin is a drug of choice

6. Toxoplasma.

***) Acquisition (transmission) of Toxoplasma occurs in all of the following situations, except:

1. Contact with an acutely infected adult

2. Contact with cat feces of an infected cat

3. Ingestion of inadequately cooked meat of an infected cow

4. Blood transfusion from an acutely infected person

5. Transplacentally to the fetus from an acutely infected mother

Answer: A* Contact with an acutely infected adult

***) All of the following diseases may be transmitted by milk, except:

1. Brucellosis

2. Tuberculosis

3. Staphylococcus food poisoning

4. Q fever

5. Toxoplasmosis

Answer: E* Toxoplasmosis

7. Viral Hepatitis.

***) All of the following about hepatitis infection are false, except: Q2012

1. Hepatitis B is transmitted by feco-oral route

2. Vaccination is available for hepatitis C

3. Incubation period for hepatitis A is 14-21 days

4. Hepatitis D is a DNA virus

5. Interferon treatment is required for hepatitis E

Answer: C* Incubation period for hepatitis A is 14-21 days

***) In hepatocellular carcinoma, all the following are true except: Q2012

1. It can be caused by hepatitis A

2. It may lead to cirrhosis

3. It leads to increased alfa feto protein

4. It may cause fever

5. It can be associated with polycythemia

Answer: A* It can be caused by hepatitis A

***) All the following are DNA viruses except: Q2012

1. Rubella virus

2. Herpes simplex virus

3. Hepatitis B

4. Adenovirus

5. Epstein-Bar virus

Answer:aaaaaa C* Hepatitis B

***) All of the following about hepatitis B vaccination are false, except: Q2012

1. Hepatitis B vaccine is given in 2 doses

2. Vaccine is protective for maximum 10 years after administration

3. Vaccine is safe in immune-compromised persons

4. Vaccine offers also partial protection against hepatitis C infection

5. Vaccine should not be used in children younger than 10 years of age

Answer: C* Vaccine is safe in immune-compromised persons

***) The incubation period of infectious hepatitis is:

1. 3 days

2. 5 days

3. 7 days

4. 10 days

5. Over 15 days

Answer: E* Over 15 days

***) Patients with hepatitis A are most infectious:

1. Infectious during the rise of bilirubin

2. Infectious during the rise of aspartate aminotransferase (AST) serum level

3. Infectious two weeks after jaundice subsides

4. Infectious when both bilirubin and AST are elevated

5. Infectious before the appearance of jaundice

Answer: E* Infectious before the appearance of jaundice

***) In hepatitis A infection all of the following are true, except:

1. Transmitted by feco-oral route

2. Cause marked elevation on the liver enzymes

3. Chronic active hepatitis is a recognized complication

4. The disease gives long life immunity

5. Infectivity is high before the appearance of jaundice

Answer: C* Chronic active hepatitis is a recognized complication

***) Regarding hepatitis A all are true, except:

1. The vaccine is available after the age of one year

2. It is more severe in children than in adults

3. In small children most cases are anicteric

4. May present an anicteric in some cases less than 5 years of age

5. No specific treatment needed in most cases (prognosis is usually good)

Answer: B* It is more severe in children than in adults

***) Chronic carrier is an important source of spread of all of the following, except:

1. Amoebic dysentery

2. Typhoid

3. Bacillary dysentery

4. Cholera

5. Infectious hepatitis (hepatitis A)

Answer: E* Infectious hepatitis (hepatitis A)

***) All of the following about hepatitis B infection are true, except:

1. May be transmitted sexually

2. Can cause chronic active hepatitis

3. Hepatoma is recognized complication

4. Vaccination is available

5. Caused by RNA virus

Answer: E* Caused by RNA virus

***) In Hepatitis B, one is false:

1. Caused by RNA virus

2. Produces chronic hepatitis in 5-10% of cases

3. Infection has longer incubation period than hepatitis A

4. Is sexually transmitted

5. Infection can be prevented by the use of vaccine

Answer: A* Caused by RNA virus

***) All of the following about hepatitis B infection are true, except:

1. May be transmitted sexually

2. Can cause chronic active hepatitis

3. Hepatoma is recognized complication

4. Vaccination is available

5. Recovery is invariable

Answer: E* Recovery is invariable

***) Regarding Viral hepatitis all are true except:

1. Hepatitis A is the commonest

2. All viruses are RNA except hepatitis B is DNA

3. Hepatitis A and E don't produce chronic illness

4. Transmission is similar in all types

5. Hepatitis C is responsible for most chronic cases

Answer: D* Transmission is similar in all types

***) The greatest risk for infection transmitted by blood transfusion is present in one of the following:

1. Syphilis

2. Hepatitis B

3. Hepatitis C

4. Human immunodeficiency virus (HIV)

5. Urinary tract infection

Answer: C* Hepatitis C

***) All of the following are the causes of chronic hepatitis, except:

1. Hepatitis B

2. Hepatitis C

3. Methyldopa

4. Alpha-1-antitrypsin deficiency

5. Ulcerative colitis

Answer: E* Ulcerative colitis

8. AIDS.

***) All of the following about acute HIV infection are true, except: Q2012

1. It is associated with a very high viral load

2. It occurs in at least 70% of HIV infection

3. Patients have low infectiousness in this stage

4. Maculopapular rash can occur in the upper trunk

5. It is diagnosed by viral PCR

Answer: C* Patients have low infectiousness in this stage

***) All of the following about acquired immunodeficiency syndrome (AIDS) are true, except:

1. It is transmitted by sexual contact

2. It can be transmitted by blood transfusion

3. The incubation period varying from one year to ten years

4. Kaposi's sarcoma can occur

5. Vaccine is available

Answer: E* Vaccine is available

***) All of the following about AIDS are true, except:

1. Can be transmitted from mother to fetus

2. Is caused by retrovirus

3. Causes dementia

4. Pneumocystis carinii pneumonia is a recognized complication

5. T4 T8 ratio is high

Answer: E* T4 T8 ratio is high

***) All of the following about AIDS are true, except:

1. May be transmitted through kidney transplantation

2. CD4 count is normal or raised

3. Carriers are infectious

4. Affects mainly the helper T-cells (T4)

5. Affect the central nervous system

Answer: B* CD4 count is normal or raised