ATI RN
Cardiovascular System Drugs Questions
Question 1 of 5
Tick the drug for ascaridosis and enterobiosis treatment:
Correct Answer: B
Rationale: Step 1: Identify the conditions - ascaridosis and enterobiosis are caused by roundworms and pinworms, respectively. Step 2: Understand mechanism - Pyrantel works by paralyzing the worms, leading to expulsion from the body. Step 3: Specificity - Pyrantel is effective against both roundworms and pinworms. Step 4: Safety - Pyrantel is considered safe for use in treating these infections. Summary: A: Bithionol - used for tapeworm infections, not effective for roundworms or pinworms. C: Praziquantel - effective against tapeworms and flukes, not roundworms or pinworms. D: Suramin - used for African sleeping sickness, not indicated for ascaridosis or enterobiosis.
Question 2 of 5
What molecular action likely mediated the therapeutic effect of acetazolamide in the 56-year-old woman with congestive heart failure?
Correct Answer: A
Rationale: The correct answer is A: Inhibition of carbonic acid dehydration in the tubular lumen. Acetazolamide inhibits the enzyme carbonic anhydrase in the proximal convoluted tubule of the kidney, leading to decreased reabsorption of bicarbonate ions and subsequent loss of bicarbonate in the urine. This results in a metabolic acidosis which can help alleviate symptoms of congestive heart failure by reducing the workload on the heart. Choice B is incorrect because acetazolamide actually leads to increased bicarbonate excretion, not reabsorption. Choice C is incorrect because acetazolamide does not directly affect Na+ reabsorption in the distal tubule. Choice D is incorrect because acetazolamide does not stimulate H+ reabsorption in the proximal tubule; rather, it inhibits carbonic acid dehydration.
Question 3 of 5
After being counseled about lifestyle and dietary changes, the patient was started on atorvastatin. During his treatment with atorvastatin, it is important to routinely monitor serum concentrations of
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
During Phase 2 of action potential in cardiac cell, depolarizing current through calcium channels is balanced by
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which of the following would least likely benefit a patient in acute pulmonary edema due to congestive heart failure?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.