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
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
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