Week 2 Beta Blockers Flashcards Preview

Nurse 252 Pharmacology Review > Week 2 Beta Blockers > Flashcards

Flashcards in Week 2 Beta Blockers Deck (12)
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1
Q

Beta Blockers end in ___

A

-olol

2
Q

What are four common Beta Blockers?

A
  • Metropolol
  • Atenolol
  • Propranolol
  • Labetolol
3
Q

What is the MOA of Beta Blockers?

A

Selectivly inhibits Beta receptors (primarily Beta 1 receptors in the heart) Thus inhibiting the sympathetic NS effects on the heart.

4
Q

What are the effects of the sympathetic nervous system on the heart?

A
  • Increased HR
  • Increased BP
  • Increased myocardium contractility and O2 demand
5
Q

What are the therapeutic effects of beta-blockers?

A
  • Decreased HR
  • Decreased BP
  • Decreased Contractility and O2 demand
6
Q

Why should Beta Blockers be used with caution in patients with a history of HF?

A

They have an excessive activation of the SNS which will worsen CHF overtime.

7
Q

Beta Blockers are often used with ___ to treat CHF

A

ACE inhibitors

8
Q

What are the main indications for Beta Blockers?

A

HF, HTN, acute MI, CAD, ventricular dysrhythmias

9
Q

What are the most common side effects of Beta Blockers?

A

Bradycardia, hypotension, fatigue, weakness

10
Q

What are the major nursing considerations for a patient taking Beta Blockers?

A
  • Obtain HR and BP prior to administering. Hold if apical HR is less than 60 or SBP is less than 90
  • Change position slowly to avoid orthostatic changes
11
Q

When are Beta Blockers contraindicated?

A
  • Worsening HF
  • Bradycardia
  • Heart Block
12
Q

When should Beta Blockers be used with caution?

A

Diabetes and liver disease