Pharmacology MCQs
Pharmacology MCQs help learners understand the actions, interactions, uses, and side effects of various drugs. These questions cover pharmacokinetics, pharmacodynamics, drug classifications, and toxicology. Practicing them aids in mastering this crucial medical subject and performing well in exams such as MDCAT, USMLE, FCPS, and NTS.
Q: Insulin lowers blood glucose by promoting
A) Protein breakdown
B) Hormone inhibition
C) Fat oxidation
D) Cellular uptake
Q: Morphine may cause respiratory depression by suppressing
A) Alveolar function
B) Cough reflex
C) Nasal airflow
D) Brainstem activity
Q: Antihistamines alleviate allergies by blocking
A) T cell activation
B) Cytokine production
C) Neutrophil migration
D) Histamine receptors
Q: Proton pump inhibitors reduce acid secretion by targeting
A) Beta-2 receptor
B) Sodium channel
C) COX-2 enzyme
D) H+/K+ ATPase
Q: Diuretics reduce blood pressure by increasing
A) Oxygen supply
B) Liver metabolism
C) Hemoglobin levels
D) Urine output
Q: Tetracyclines inhibit bacterial growth by blocking
A) DNA replication
B) Protein synthesis
C) Cell wall formation
D) Lipid metabolism
Q: Dopamine agonists are prescribed in
A) Depression
B) Diabetes
C) Parkinson’s disease
D) Tuberculosis
Q: Anaphylactic shock is treated with
A) Epinephrine
B) Lorazepam
C) Warfarin
D) Insulin
Q: Heparin acts immediately by inhibiting
A) Platelets
B) Thrombin
C) Erythropoietin
D) Lipase
Q: ACE inhibitors lower blood pressure by reducing
A) Sodium levels
B) Angiotensin II
C) Calcium influx
D) Glucose reabsorption