Q- A patient taking warfarin is given vitamin K. What is the primary effect of vitamin K administration?
A- Decreases synthesis of clotting factors II, VII, IX, X
B- Increases synthesis of clotting factors II, VII, IX, X
C- Inhibits platelet aggregation
D- Prevents fibrin degradation
Q- A patient taking spironolactone develops breast enlargement and sexual dysfunction. What is the mechanism behind this adverse effect?
A- Androgen receptor stimulation
B- Antiandrogen effect
C- Calcium channel blockade
D- Serotonin receptor activation-
Q- A patient treated with ciprofloxacin develops tendon pain and swelling. What is the most likely complication?
A- Achilles tendon rupture
B- Aplastic anemia
C- Cardiomyopathy
D- Hemolytic anemia
Q- A patient with asthma is started on montelukast. What is the mechanism of action of this medication?
A- Blocks leukotriene receptors
B- Inhibits cyclooxygenase
C- Stimulates beta-2 receptors
D- Stimulates muscarinic receptors
Q- A patient receiving heparin develops thrombocytopenia and thrombosis. What is the underlying mechanism?
A- Antibody formation against heparin–platelet factor 4 complex
B- Bone marrow suppression
C- Direct platelet destruction by heparin
D- Inhibition of platelet cyclooxygenase