Free PCU Pharmacology & Therapeutic Interventions Questions and Answers

Question 1

Which medication is a beta-blocker?

Accepted Answer

Metoprolol

Answer

Metoprolol is a commonly prescribed medication that belongs to the beta-blocker class of drugs. Beta-blockers work by blocking the effects of adrenaline on the heart, leading to a slower heart rate and reduced blood pressure. This makes metoprolol effective in treating conditions such as hypertension, angina, and heart failure.

Question 2

Why should labs be checked before giving vancomycin?

Accepted Answer

Monitor toxicity

Answer

Vancomycin is an antibiotic with a narrow therapeutic index, meaning the difference between an effective dose and a toxic dose is small. It can cause nephrotoxicity (kidney damage) and ototoxicity (hearing damage), especially at higher concentrations. Therefore, monitoring serum vancomycin levels through lab tests is crucial to ensure the drug remains within a safe and effective range, preventing adverse effects.

Question 3

What is a common side effect of opioids?

Accepted Answer

Respiratory depression

Answer

Opioids are potent pain relievers that act on the central nervous system, but they also depress the respiratory drive. This can lead to a decreased respiratory rate and depth, potentially causing hypoventilation and dangerously low oxygen levels. Respiratory depression is a serious and potentially life-threatening side effect that requires careful monitoring, especially with higher doses or in opioid-naive patients.

Question 4

What is the antidote for heparin?

Accepted Answer

Protamine sulfate

Answer

Heparin is an anticoagulant medication used to prevent blood clots. In cases of heparin overdose or excessive bleeding, its anticoagulant effects need to be reversed. Protamine sulfate is the specific antidote for heparin, as it binds to heparin and forms a stable complex, neutralizing its anticoagulant activity and restoring normal blood clotting.

Question 5

Which medication route provides the fastest effect?

Accepted Answer

IV

Answer

Intravenous (IV) administration delivers medication directly into the bloodstream, bypassing absorption barriers like the gastrointestinal tract or muscle tissue. This direct route ensures the drug reaches its target site rapidly and achieves therapeutic concentrations almost immediately. Consequently, IV administration provides the fastest onset of action compared to oral, intramuscular, or subcutaneous routes.

PCU - Progressive Care Unit Certification Practice Test

PCU - Progressive Care Unit Certification Practice Test

Free PCU Pharmacology & Therapeutic Interventions Questions and Answers