The examples of the following English prescriptions Prescription I

Tel. ER5- 600 Reg. No. 198

Rupert Black, M.D.

230 Broad Street Philadelphia 1, Philadelphia¹

Name: Mrs. Anna White, age 45

Address: 619 Locust Street, Philadelphia, Philadelphia

Tabs, Thyroid USP 30 ng²

Dispense: 60

Sig. Tabs.i.t. i.d.a.c.

Rupert Black, M.D.

ne.rep.

Prescription II

Tel. ER 5- 600

Rupert Black, M.D. 230 Broad Street Philadelphia 1, Philadelphia

Name: Mrs. John W. Keyes, age 30 Address: 525 East, 68^th Str., New York, New York 10021 R_x Theophylline 3 gm

Ephedrine Sulfate 0.6 gm

Phenobarbital 0.6 gm

M. Divide into 30 capsules

Sig. Cap. i. of 4 h. p.r.n.

Rupert Black, M.D.

ne.rep.

Prescription III

Tel. ER 5-600

Rupert Black, M.D. 230 Broad Street Philadelphia 1, Philadelphia

Name: Mr. Thomas A. Ports, age 29 Address: 11 Maffit. Str. San Francisco, California 94143 R_х Potassium Penicillin G 250000 units

Dispense: 60

Sig. Tabs, i.i.stat, then Tabs i.q. 4h.

Rupert Black, M.D.

Independent Work: Bacteria

Exercise 1. Read the text.

Bacteria

Bacteria are single-celled organisms of minute size and simple structure. They are usually less than one thousandth of a millimeter in diameter. They differ in shape and are named accordingly. Cocci are small round cells which arrange themselves in different patterns; bacilli are rod-shaped; vibrios are curved rods or comma-shaped; spirochaeta are thin filaments which form spirals. Bacteria contain no formed nucleus and reproduce by simple division. Some are mobile, a property which is due to the movement of protoplasmic processes.

For growth bacteria require an adequate amount of water. Some grow best in air but a few are unable to grow in the presence of free oxygen. Their growth rate is dependent on temperature, each species having its own optimum. In general, cold inhibits growth rate whereas above the optimum their properties change and at still higher temperatures they are destroyed. Their food requirements vary. They are widely spread in nature and are found in the atmosphere, in soil and in water. Some can live and derive sustenance from soil and air but others require organic material and by their action cause putrefaction.

Of a large number of species very few are responsible for a disease in the human being and those that are usually have stricter requirements as regards their living conditions and nutrition. They can be grown in the laboratory on a number of different substances; for example, gelatine, malt extract, solutions of different sugars.

Of the bacteria which are responsible for a disease - known as pathogenic - a few will produce, when grown in a test tube, a highly poisonous substance or toxin which if injected will cause in the body many symptoms of that disease. Other bacteria, while not secreting a toxin, are in themselves poisonous; their toxin only becomes manifested when the killed organisms are injected or when they are killed in the body in the course of disease.

Exercise 2. Make up a short plan using sentences from the text.

Exercise 3. Find sentences about the shapes of bacteria.

Exercise 4. Tell about the necessary conditions for the growth of bacteria.