ATI RN
Pharmacology of Drugs Acting on Cardiovascular System Questions
Question 1 of 5
Tick the drug, a salicylamide derivative:
Correct Answer: D
Rationale: The correct answer is D: Niclosamide. Niclosamide is a salicylamide derivative used to treat tapeworm infections. This drug works by disrupting the mitochondrial function of parasites. Explanation: 1. Praziquantel (A) is used to treat schistosomiasis, not a salicylamide derivative. 2. Piperazine (B) is used to treat roundworm infections, not a salicylamide derivative. 3. Mebendazole (C) is an anthelmintic used to treat various worm infections, not a salicylamide derivative. In summary, Niclosamide is the correct choice as it is a salicylamide derivative specifically used for tapeworm infections, while the other options are used for different types of worm infections.
Question 2 of 5
Which of the following antiarrhythmic drugs would be appropriate for this patient?
Correct Answer: D
Rationale: Step 1: Identify the patient's condition as ventricular arrhythmia. Step 2: Choose a drug effective for ventricular arrhythmias, like Lidocaine. Step 3: Lidocaine is a class Ib antiarrhythmic drug that acts quickly on ventricular tissue. Step 4: Sotalol (A) is a non-selective beta blocker, not ideal for ventricular arrhythmias. Step 5: Flecainide (B) is a class Ic antiarrhythmic drug more suitable for supraventricular arrhythmias. Step 6: Mexiletine (C) is a class Ib antiarrhythmic, but lidocaine is preferred for acute ventricular arrhythmias.
Question 3 of 5
Which of the following drugs was most likely administered to the patient to prevent further fibrillatory episodes?
Correct Answer: D
Rationale: The correct answer is D: Amiodarone. Amiodarone is a potent antiarrhythmic drug commonly used to prevent fibrillatory episodes like atrial fibrillation. It has a broad spectrum of action, affecting multiple ion channels to stabilize cardiac rhythm. Mexiletine (A) is used for ventricular arrhythmias, not fibrillatory episodes. Sotalol (B) is also used for ventricular arrhythmias and can actually increase the risk of torsades de pointes in patients with atrial fibrillation. Quinidine (C) is an older antiarrhythmic that is less commonly used due to its potential for proarrhythmic effects.
Question 4 of 5
Because of proven beneficial effects on 'cardiac remodeling', these agents are now indicated as first line therapy in CHF patients. Which of the following is representative of this group of drugs?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Major lipid class present in chylomicrons is
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.