ATI RN
ATI Pharmacology Practice A Questions
Question 1 of 5
Selegiline:
Correct Answer: A
Rationale: Selegiline selectively inhibits MAO-B, increasing dopaminergic activity in Parkinson's disease treatment.
Question 2 of 5
Selegiline:
Correct Answer: A
Rationale: Selegiline selectively inhibits MAO-B, increasing dopaminergic activity in Parkinson's disease treatment.
Question 3 of 5
Which assessment finding, by the nurse, is a priority concern when a client receives pseudoephedrine (Sudafed)?
Correct Answer: C
Rationale: Pseudoephedrine's sympathomimetic action risks dysrhythmias, making an irregular heart rate a priority concern for immediate reporting. Fever , respiratory rate , and dry mouth are less urgent. C aligns with cardiovascular risks, making it the priority.
Question 4 of 5
Amiodarone:
Correct Answer: B
Rationale: Amiodarone is a class III antiarrhythmic that affects sodium (Na+), potassium (K+), and calcium (Ca2+) channels, prolonging repolarization, so the statement excluding Ca2+ effects is false. It has antianginal effects by reducing myocardial oxygen demand through heart rate and afterload reduction, a true statement and its correct attribute. Its half-life is exceptionally long (weeks to months), not short, due to extensive tissue distribution, making that false. It decreases, not increases, peripheral resistance via vasodilation, so that's incorrect. It also affects the lungs, causing potential pulmonary toxicity, not minimal impact. The antianginal property is key to its use in angina alongside arrhythmias, reflecting its broad ion channel blockade and hemodynamic benefits, necessitating careful monitoring for side effects.
Question 5 of 5
The nurse is caring for a client receiving isoniazid (INH) for tuberculosis. Which instruction should the nurse include?
Correct Answer: C
Rationale: Isoniazid treats TB but risks hepatotoxicity, causing jaundice (yellowing skin, choice C), a serious sign needing immediate reporting to prevent liver failure. Food is optional'INH can be taken either way. Tyramine relates to MAOIs, not INH. Bedtime isn't specific'dosing is flexible. Reporting jaundice aligns with INH's side effect profile, critical in TB therapy where long-term use is common, making C the essential instruction for early detection and safety.