ATI RN
NCLEX Pharmacology Cardiovascular Drugs Questions
Question 1 of 5
Tick the drug of choice for the treatment of extraluminal amebiasis:
Correct Answer: B
Rationale: The correct answer is B: Metronidazole. Metronidazole is the drug of choice for extraluminal amebiasis due to its high efficacy against Entamoeba histolytica. It is a nitroimidazole antibiotic that works by disrupting the DNA structure of the parasite. Other choices are incorrect because: A: Iodoquinol is mainly used for luminal amebiasis. C: Diloxanide is also used for luminal amebiasis. D: Tetracycline is not the first-line treatment for extraluminal amebiasis.
Question 2 of 5
This drug blocks both beta receptors and K+ channels.
Correct Answer: B
Rationale: The correct answer is B: Sotalol. Sotalol is a non-selective beta-blocker and a class III antiarrhythmic agent that blocks both beta receptors and potassium (K+) channels. By blocking beta receptors, it decreases heart rate and contractility. Blocking K+ channels prolongs the action potential duration, aiding in the treatment of various arrhythmias. Quinidine (A) is a class I antiarrhythmic that primarily blocks Na+ channels. Propranolol (C) is a selective beta-blocker that does not affect K+ channels. Digoxin (D) is a cardiac glycoside that inhibits the sodium-potassium pump but does not block beta receptors or K+ channels.
Question 3 of 5
Which of the following drugs did a patient with symptoms of palpitations, insomnia, diarrhea, and increased sweating most likely take?
Correct Answer: C
Rationale: The correct answer is C: Amiodarone. This drug is an antiarrhythmic medication commonly associated with side effects such as palpitations, insomnia, diarrhea, and increased sweating. Quinidine (A) and Lidocaine (B) are also antiarrhythmic drugs but are less likely to cause the specific symptoms described. Adenosine (D) is a drug used for treating certain types of irregular heartbeats but does not typically cause the combination of symptoms mentioned. Therefore, based on the patient's symptoms, Amiodarone is the most likely drug taken.
Question 4 of 5
Which of the following agents has a direct effect on the AV node, delaying calcium-channel depolarization?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Digoxin given for cardiac failure is extremely valuable in patients of
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.