Medical Knowledge Pharmacology 3

Question 1

What is the therapeutic index of a drug?

Accepted Answer

Ratio of toxic dose to effective dose

Answer

Maximum safe single dose

Answer

Minimum effective dose

Answer

Rate of drug clearance

Question 2

Which oral anticoagulant requires regular INR monitoring?

Accepted Answer

Warfarin

Answer

Aspirin

Answer

Heparin

Answer

Clopidogrel

Question 3

What is the mechanism of action of ACE inhibitors?

Accepted Answer

Inhibit angiotensin-converting enzyme

Answer

Block calcium channels

Answer

Block beta-adrenergic receptors

Answer

Increase potassium excretion

Question 4

Which type of drug reaction involves immune system activation and is not dose-dependent?

Accepted Answer

Allergic reaction

Answer

Toxic reaction

Answer

Idiosyncratic reaction

Answer

Side effect

Question 5

What does 'QD' mean in prescription writing?

Accepted Answer

Once daily

Answer

Every 6 hours

Answer

Twice daily

Answer

Every other day

Question 6

Which medication class reduces gastric acid secretion by blocking the proton pump?

Accepted Answer

Proton pump inhibitors

Answer

H2 blockers

Answer

Antacids

Answer

Anticholinergics