MCQs Dr. Alaa on Dynamics 1st week by Pulse.

a. Teratogenic

b. Mutagenic

c. Iatrogenic

d. Non of the above

a. Essential drug

b. Teratogenic drug

c. Orphan drug

d. Non of the above

a. Both affinity & efficacy

b. Affinity Higher than pure agonist

c. Efficacy less than pure agonist

d. All of the above

a. Curare on Nm receptors

b. Ach on M receptors

c. Antihistamines on H1 receptors

d. Non of the above

a. Protein in nature formed in ribosome

b. Receptor turnover increases their number

c. Decrease number of receptors may occur to use of agonist

d. Up regulation occurs due to use of B2 agonist for long time

a. α1 receptors

b. α2 receptors

c. β receptors

d. M receptors

a. Nm receptors

b. Tyrosine kinase linked receptors

c. Receptor regulating transcription

d. Β receptors linked to G protein

a. M3 receptors mediated VD due to release of Nitric oxide

b. Penicillamine is a chelator used in treatment of iron toxicity

c. Digoxin acts by inhibiting Sodium pump.

d. Protamine is basic drug used as antidote for heparin toxicity

a. Local anesthetic drugs block sodium channels.

b. Citrate is act physically as in vitro anticoagulant

c. Bismuth compounds are demulcent and used in peptic ulcer.

d. Desferrioxamine is antidote for iron toxicity

a. β receptors are receptors for slow transmission

b. Corticosteroids act via intracellular receptor for rapid transmission

c. M3 receptors in non vascular smooth muscles act by increase calcium release

d. Sildenafil acts by stimulation of NO receptors.