Pharmacology MCQs- 256

Q- Which of the following statements correctly describe the lag time of a drug?

A- Time from administration of the drug to appearance in blood

B- Time from administration of the drug to reaching minimal effect concentration

C- Time from administration of the drug to reaching maximal effect concentration.

D- Time in which plasma concentration remains the same

A- Time from administration of the drug to appearance in blood



Q- Which of the following receptors are membrane receptors (not intracellular)?

A- Receptors for steroids

B- Receptors for thyroid hormones

C- Receptors for vitamin D

D- The nicotinic receptors for acetylcholine

D- The nicotinic receptors for acetylcholine



Q- Which of the following is the mechanism of action of cromolyn for asthmatic patients?

A- Blocks adenosine receptors in bronchial smooth muscle

B- Inhibits COX 2

C- Inhibits phosphodiesterase

D- Prevents degradation of mast cells

D- Prevents degradation of mast cells



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