Practice Questions

40. A patient with Type 2 Diabetes is prescribed empagliflozin. Clinically, what is the primary mechanism of action of this drug?

A. Increasing insulin secretion.
B. Decreasing hepatic glucose production.
C. Inhibiting sodium-glucose co-transporter 2 (SGLT2) in the kidneys, leading to increased glucose excretion.
D. Enhancing insulin sensitivity.
nmdcat.online BS Nursing
Jun 6, 2026

39. A patient with a history of myocardial infarction is prescribed aspirin daily. Critically, what is the primary mechanism of action of aspirin at low doses that contributes to its cardiovascular protective effect?

A. Vasodilation.
B. Inhibition of COX-2.
C. Irreversible inhibition of COX-1 in platelets, leading to reduced thromboxane A2.
D. Activation of plasminogen.
nmdcat.online BS Nursing
Jun 6, 2026

38. A patient on opioid analgesics for chronic pain develops severe constipation. Urgently, which pharmacological class is specifically designed to treat opioid-induced constipation without crossing the blood-brain barrier and reversing analgesia?

A. Bulk-forming laxatives.
B. Stool softeners.
C. Peripherally acting ?-opioid receptor antagonists (PAMORAs, e.g., methylnaltrexone).
D. Stimulant laxatives.
nmdcat.online BS Nursing
Jun 6, 2026

36. A patient is prescribed a macrolide antibiotic (e.g., azithromycin). Technically, what is the mechanism of action of macrolides?

A. Inhibiting bacterial cell wall synthesis.
B. Inhibiting bacterial protein synthesis by binding to the 50S ribosomal subunit.
C. Inhibiting bacterial DNA gyrase.
D. Disrupting bacterial cell membrane.
nmdcat.online BS Nursing
Jun 6, 2026

34. A patient develops urgently status epilepticus. Critically, which class of drugs is typically used for initial urgent management to terminate seizures?

A. Phenytoin.
B. Carbamazepine.
C. Benzodiazepines (e.g., lorazepam, diazepam).
D. Ethosuximide.
nmdcat.online BS Nursing
Jun 6, 2026

33. A patient with Type 2 Diabetes is prescribed glipizide. Medicinally, what is the primary mechanism of action of glipizide?

A. Decreasing hepatic glucose production.
B. Increasing glucose uptake in peripheral tissues.
C. Stimulating insulin secretion from pancreatic beta cells.
D. Inhibiting carbohydrate absorption.
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

31. A patient with chronic heart failure is prescribed carvedilol. Clinically, what is a critical caution when initiating carvedilol therapy, especially in the elderly?

A. Rapid dose escalation is recommended.
B. Initiate at a low dose and titrate up slowly to avoid worsening heart failure symptoms.
C. It should be stopped if blood pressure drops slightly.
D. It should be given only in the hospital setting.
nmdcat.online BS Nursing
Jun 6, 2026
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