by gringo


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What class of drugs are beta blockers?
Beta adrenergic antagonist
Beta blockers are known as what?
The Lols
What are the two types of beta blockers?
Non cardioselective (Beta 1 & Beta 2) and Cardioselective (Beta 1)
Beta 1 deals primarily with what organ?
Heart
Beta 2 deals primarily with what organ?
lungs
What is the prototype drug for cardioselective beta 1 blockers?
atenolol (Tenormin) and metoprolol (Lopressor)
What are the two indications of use for beta blockers?
- HTN, HF, prevention of angina attacks, prevention of MI recurrence, tachydysrhythmias
- other conditions: migraines, anxiety, panic attacks, glaucoma
What is the action of beta blockers?
 block effects of SNS stimulation on the beta receptors of the heart - lowers HR, contractility and conduction
What is the effect of Beta 1 blockers?
lowers cardiac output which lowers BP (lowers HR, force of contraction and speed of conduction)
What is the effect on Beta 2?
Bronchoconstriction
What are the two contraindications of beta blockers?
- bradycardia, certain dysrhythmias, pregnancy and lactation
- cardiogenic schock, severe heart failure
What three pts are cautioned about taking beta blockers?
Pts with asthma, COPD, DM
What are 5 CV side effects of beta blockers?
- bradycardia
- lower BP
- peripheral edema
- CHF
- exercise intolerance
What are 4 CNS side effects of beta blockers?
- dixxiness
- fatigue
- weakness
- depression
What are 2 GU side effects of beta blockers?
- lowers libido
- impotence
What are two respiratory side effects of beta blockers?
- bronchospasms/constriction
- dyspnea
What ENDO side effect of beta blockers?
increase or decrease in blood sugar
If beta blockers are abruptly withdrawn, what are 4 serious problems that could arise?
- HTN
- increase HR
- dysrhythmia
- MI
What are 7 nursing considerations of Beta blockers?
- monitor BP - hold if SBP is <90
- call MD if apical pulse <60 bpm
- Assess EKG for heart block
- monitor for S&S of HF (contractility
- Monitor WBG frequently if pt has DM
- Monitor for bronchoconstriction (dyspnea, wheexing)
- rebound
What are 7 teachings associated with beta blockers?
- Never stop me abruptly
- monitor WBG frequently b/c symptoms of hypoglycemia are decreased
- change position slowly
- Call MD if pulse <60 bpm
- Report SOB, BP, pedal edema, syncope, weight gain >2lbs/day, irregular or lower BP
-Monitor BP
- Report depression or impotence
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