Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
actions |
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Definition
*decr hr (chronotropic [rate])
*decr myocardial contractility (inotropic [force])
*decr rate of conduction thru AV node |
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
therapeutic uses
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Definition
angina pectoris
HTN
cardiac dysrhythmias
MI
HF
unlabeled uses include:
hyperthyroidism
migraine headache
stage fright
pheochromocytoma
glaucoma |
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
side effects
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Definition
bradycardia
dcr cardiac output
AV block
orthostatic hypotension
rebound myocardium excitation
bronchoconstriction
dcr glycogenolysis |
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
contraindications/precautions
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Definition
*beta adrenergic blockers are contraindicated in clients with AV block and sinus bradycardia
*nonselective beta adrenergic blockers are contraindicated in clients with asthma, bronchospasm and HF
*use cardioselective beta adrenergic blockers cautiously in clients with heart failure, asthma, bronchospasm, diabetes, hx of severe allergies and depression
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
medication/food interactions |
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Definition
*calcium channel blockers intensify the effects of beta blockers
*concurrent use of antihypertensive meds intensify hypotensive effects
*insulin prevents glycogenolysis
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
nursing interventions/client education
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Definition
*do not discontinue med w/o consulting PCP
*avoid sudden changes in position to prevent orthostatic hypotension
*do not crush/chew ER tabs
*self monitor HR at home daily
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Term
beta adrenergic blockers
cardioselective:metoprolol, atenolol
nonselective:propranolol, nadolol
nursing eval of med effectiveness
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Definition
*absence of chest pain
*absence of dysrhythmias
*normotensive bp
*control of HF signs/symptoms |
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