ATI RN
First Aid Cardiovascular Drugs Quizlet Questions
Question 1 of 5
The client is taking a calcium channel blocker for an arrhythmia. What is a contraindication to giving the client this drug?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
A 23-year-old baseball player has a normal heart rate and cardiac echocardiogram, suggesting normal cardiac contractility. This may be, in part, because of satisfactory intracellular concentrations of calcium within the heart. Which of the following sources of intracellular calcium plays the most minor role in cardiac contractility?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
A 78-year-old man presents to the emergency room with acute-onset left-sided weakness and slurred speech that started 40 min ago. A CT scan of his brain confirms an ischemic stroke. The patient is started on alteplase immediately. What is the mechanism of action of alteplase?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
The above figure represents the action potential of a Purkinje fiber. At which of the following areas on the succeeding graph do calcium channels close and potassium channels open, resulting in an outward current that leads to membrane repolarization?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
All are true EXCEPT: Amiodarone:
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.