ATI RN
Cardiovascular Drugs Pharmacology Quizlet Questions
Question 1 of 5
Tick the antibacterial drug – a quinolone derivative:
Correct Answer: B
Rationale: Step 1: Quinolone derivatives are a class of antibiotics that target bacterial DNA synthesis. Step 2: Nalidixic acid is a first-generation quinolone derivative that inhibits DNA gyrase enzyme. Step 3: Nalidixic acid is effective against gram-negative bacteria, making it an antibacterial drug. Step 4: Nitrofurantoin is a nitrofuran antibiotic, not a quinolone derivative. Step 5: Streptomycin is an aminoglycoside antibiotic that inhibits protein synthesis, not DNA synthesis. Step 6: Metronidazole is an antimicrobial drug used for anaerobic bacteria and protozoa, not a quinolone derivative.
Question 2 of 5
Decreased platelet aggregation the patient's symptoms?
Correct Answer: C
Rationale: The correct answer is C: Nitroglycerin. Nitroglycerin is a vasodilator that works by releasing nitric oxide, which leads to decreased platelet aggregation. This helps improve blood flow and reduce symptoms like chest pain in patients with heart conditions. Propranolol (A) is a beta-blocker that doesn't directly affect platelet aggregation. Isosorbide mononitrate (B) is a vasodilator but doesn't have a significant impact on platelet aggregation. Nifedipine (D) is a calcium channel blocker that also doesn't directly influence platelet aggregation.
Question 3 of 5
A 52-year-old woman suffering from hypertension still had a blood pressure of 156/92 mm Hg after 3 months of therapy with hydrochlorothiazide and losartan. Her physician decided to add a third drug that acts by decreasing central sympathetic outflow. Which of the following adverse effects was most likely to occur after a few days of therapy with the new drug?
Correct Answer: A
Rationale: The correct answer is A: Severe postural hypotension. Adding a third drug that decreases central sympathetic outflow (possibly a centrally acting alpha-2 adrenergic agonist) can lead to a sudden drop in blood pressure upon standing, causing postural hypotension. This occurs due to decreased sympathetic tone leading to vasodilation and reduced vascular tone. This effect is more likely to occur shortly after initiating therapy with the new drug. Choice B: Megaloblastic anemia is not a common adverse effect of drugs that decrease sympathetic outflow. Choice C: Palpitations are not typically associated with drugs that decrease sympathetic outflow. Choice D: Pronounced sedation is not a common side effect of centrally acting sympatholytic drugs.
Question 4 of 5
A treatment of angina that consistently decreases the heart rate and can prevent vasospastic angina attacks is
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Quinidine is now used primarily for
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.