ATI RN
Pharmacology of Drugs Acting on Cardiovascular System Questions
Question 1 of 5
Tick the drug belonging to antibiotics-carbapenems:
Correct Answer: C
Rationale: The correct answer is C: Imipenem, as it belongs to the carbapenem class of antibiotics. Carbapenems are broad-spectrum antibiotics effective against a wide range of bacteria, including some that are resistant to other antibiotics. Imipenem is specifically known for its activity against gram-positive and gram-negative bacteria. A: Aztreonam is a monobactam antibiotic, not a carbapenem. B: Amoxicillin is a penicillin antibiotic, not a carbapenem. D: Clarithromycin is a macrolide antibiotic, not a carbapenem. In summary, only Imipenem (Choice C) is a carbapenem antibiotic, making it the correct choice for this question.
Question 2 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 3 of 5
Tick the group of drugs used as subsidiary medicines in cancer treatment:
Correct Answer: D
Rationale: The correct answer is D: All of the above. Cytoprotectors help protect healthy cells from damage caused by cancer treatment. Bone marrow growth factors aid in stimulating the production of blood cells, which can be suppressed during cancer treatment. Antimetastatic agents help prevent the spread of cancer to other parts of the body. Therefore, all these groups of drugs are used as subsidiary medicines in cancer treatment to support the primary treatment and manage side effects. Choices A, B, and C are incorrect individually because each group plays a specific role in supporting cancer treatment, making the combination of all three necessary for comprehensive care.
Question 4 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 5 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.