Podcast
Questions and Answers
What is the main effect of digoxin on myocardial contraction?
What is the main effect of digoxin on myocardial contraction?
- Increases heart rate
- Increases the force of contraction (correct)
- Decreases the force of contraction
- Slows down relaxation
Why should patients with renal dysfunction receive smaller doses of digoxin?
Why should patients with renal dysfunction receive smaller doses of digoxin?
- To increase its effectiveness
- It accumulates in the liver
- It is excreted through the kidneys (correct)
- It is metabolized faster
What is a key concern associated with digoxin therapy?
What is a key concern associated with digoxin therapy?
- Improved myocardial perfusion
- Increased heart rate
- Decreased blood pressure
- Digitalis toxicity (correct)
Why is the serum potassium level monitored in patients taking digoxin?
Why is the serum potassium level monitored in patients taking digoxin?
During which phase are coronary arteries perfused?
During which phase are coronary arteries perfused?
Which layer of the heart is responsible for the pumping action?
Which layer of the heart is responsible for the pumping action?
Which factor contributes most significantly to the risk of falls in patients with orthostatic hypotension?
Which factor contributes most significantly to the risk of falls in patients with orthostatic hypotension?
Which imaging technique is best suited for revealing areas of decreased blood flow in the heart?
Which imaging technique is best suited for revealing areas of decreased blood flow in the heart?
Which sequence correctly describes the electrical conduction pathway in the heart?
Which sequence correctly describes the electrical conduction pathway in the heart?
Which factor depresses the contractility of the heart?
Which factor depresses the contractility of the heart?
Which medication was historically considered essential for heart failure treatment but is now less frequently prescribed due to newer alternatives?
Which medication was historically considered essential for heart failure treatment but is now less frequently prescribed due to newer alternatives?
What cardiac markers do not measure ejection fractions?
What cardiac markers do not measure ejection fractions?
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