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Author Question: Which of the following medications would be of most help to increase myocardial contractility in a ... (Read 26 times)

DyllonKazuo

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Which of the following medications would be of most help to increase myocardial contractility in a patient with heart failure?
 
  1. Digoxin (Lanoxin)
  2. Lisinopril (Prinivil)
  3. Carvedilol (Coreg)
  4. Furosemide (Lasix)

Question 2

Which of the following would lead to an increase in cardiac output?
 
  1. Reduced cardiac contractility
  2. Hypovolemia
  3. Peripheral vascular resistance
  4. Increase in preload



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shayla

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Answer to Question 1

Correct Answer: 1
Rationale: Cardiac glycosides increase cardiac output by increasing the force of contraction. Diuretics lower blood volume, beta blockers lower heart rate, and ACE inhibitors lower peripheral vascular resistance and blood volume.

Answer to Question 2

Correct Answer: 4
Rationale: Increased preload results in a more forceful contraction, and increases cardiac output. Hypovolemia is a lower blood volume, and will result in lower cardiac output. Peripheral vascular resistance increases afterload and increases the workload on the heart. A reduction in cardiac contractility results in lower preload and subsequent cardiac output.





 

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