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HESI LPN · HESI LPN Pharmacology · HESI Drugs and the immune system

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Drug which interfere with the bacterial cell wall synthesis is

A. Chloramphenicol
B. Tetracyclines
C. Colistin
D. Penicillins and cephalosporins

Expert Explanatory Rationale

Correct Answer: Penicillins and cephalosporins

Question 2 of 5

If a patient gives history of urticaria, itching and swelling of lips following injection of penicillin G, then

A. He will develop similar reaction whenever penicillin is injected
B. He can be given ampicillin safely
C. He can be given oral phenoxymethyl penicillin safely
D. All natural and semisynthetic penicillins are contraindicated for him

Expert Explanatory Rationale

Correct Answer: All natural and semisynthetic penicillins are contraindicated for him

Question 3 of 5

Adverse effects associated with ciclosporin include all the following EXCEPT:

A. Reduced glomerular filtration pressure leading to nephrotoxicity
B. Gingival hyperplasia
C. Alopecia
D. Tremor

Expert Explanatory Rationale

Correct Answer: Alopecia

Question 4 of 5

The most suitable tetracycline for use in a patient with impaired renal function is

A. Chlortetracycline
B. Demeclocycline
C. Oxytetracycline
D. Doxycycline

Expert Explanatory Rationale

Correct Answer: Doxycycline

Question 5 of 5

Fexofenadine:

A. Is a competitive antagonist at the H₁ receptor
B. Is used as a sedative in children
C. Is effective treatment for motion sickness
D. Plasma concentrations when very high can lead to prolonged QTc and torsades de pointes

Expert Explanatory Rationale

Correct Answer: Is a competitive antagonist at the H₁ receptor

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