Beta-Blockers: Uses and Effects

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Questions and Answers

Which of the following is an example of a beta-blocker?

  • Metoprolol (correct)
  • Amlodipine
  • Warfarin
  • Lisinopril

Beta-blockers reduce heart rate by what mechanism?

  • Positive inotrope
  • Negative inotrope
  • Positive chronotrope
  • Negative chronotrope (correct)

What is the effect of beta-blockers on the contractility of the heart?

  • Decreases contractility (correct)
  • Increases contractility
  • No effect on contractility
  • Initially increases, then decreases contractility

Beta-blockers can help in heart failure and angina by doing what?

<p>Decreasing cardiac workload (A)</p> Signup and view all the answers

Beta-blockers are beneficial in conditions like what?

<p>Atrial fibrillation (D)</p> Signup and view all the answers

What condition can beta-blockers improve survival in if used carefully?

<p>Heart failure (B)</p> Signup and view all the answers

What condition should be monitored for when administering beta-blockers?

<p>Bradycardia (D)</p> Signup and view all the answers

Which of the following is another condition to monitor for when using beta-blockers?

<p>Hypotension (A)</p> Signup and view all the answers

What is Atenolol?

<p>A beta-blocker (A)</p> Signup and view all the answers

What is a teaching point related to beta-blockers?

<p>They slow down heart rate (A)</p> Signup and view all the answers

Which mechanism describes how beta-blockers affect heart failure?

<p>Decreasing cardiac workload (D)</p> Signup and view all the answers

What is a potential risk associated with beta-blockers that requires careful monitoring?

<p>Low blood pressure (A)</p> Signup and view all the answers

What is the term for the effect of beta-blockers that reduces heart rate?

<p>Negative chronotrope (A)</p> Signup and view all the answers

What is the effect of beta-blockers on angina?

<p>Decreases chest pain (C)</p> Signup and view all the answers

Which of these parameters is important to watch for with beta-blocker use?

<p>Heart rate (B)</p> Signup and view all the answers

What is a direct effect of beta-blockers on the heart?

<p>Decreased blood pressure (C)</p> Signup and view all the answers

Atenolol and Metoprolol share what common class of medication?

<p>Beta-blockers (C)</p> Signup and view all the answers

Which cardiac parameter will be impacted by beta-blockers?

<p>Heart rate (D)</p> Signup and view all the answers

Beta-blockers effectiveness to help improve survival is greatly increased when they what?

<p>Used carefully (C)</p> Signup and view all the answers

A negative inotrope reduces the ...?

<p>Contractility (A)</p> Signup and view all the answers

Flashcards

Examples of Beta-Blockers

Metoprolol, Atenolol

Mechanism of Beta-Blockers

Beta-blockers reduce heart rate (negative chronotrope) and contractility (negative inotrope), decreasing cardiac workload.

Beta-Blockers and Heart Rate

Beneficial in conditions like atrial fibrillation.

Beta-Blockers in Heart Failure

Beta-blockers can improve survival in heart failure if used carefully.

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Monitoring after Beta-Blocker

Monitor for bradycardia (slow heart rate) and hypotension (low blood pressure).

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Study Notes

Beta-Blockers

  • Examples include metoprolol and atenolol.
  • Reduces heart rate (negative chronotrope).
  • Reduces contractility (negative inotrope), which assists in heart failure and angina by decreasing cardiac workload.
  • Slows down heart rate, which is beneficial in conditions like atrial fibrillation.
  • Improves survival in heart failure if used carefully.
  • Monitor for bradycardia and hypotension.

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