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Drugs for HF (Module 2 - Pharmacology)
This is a draft cheat sheet. It is a work in progress and is not finished yet.
PRIMARY USE
to increase contractility or strength of myocardial contraction |
MECHANISM OF ACTION
To cause a more folrceful heartbeat, slower heart rate by decreasing conduction through the SA and AV nodes |
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Cardiac Glycosides
Increase force of heartbeat, slow heart rate |
Improve cardiac output |
Second-line treatment for HF |
Narrow therapeutic range |
ADVERSE EFFECTS
Neutropenia |
Dysrhythmias |
Digitalis toxicity |
(Digitalization refers to a procedure in which the dose of digoxin is gradually increased until tissues become saturated with the drug, and the symptoms of HF diminish) |
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NURSE'S ROLE
Evaluate for ventricular dysrhythmias |
Assess renal function |
Know restrictions on use with antidiarrheals/antacids |
MONITOR FOR: |
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drug interactions |
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electrolyte levels |
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digoxin level (0.5 - 2 mg/mL) |
PATIENT TEACHING: |
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Monitor |
- therapeutic levels w/ lab tests |
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- pulse rate |
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Know s/s of toxicity |
(confusion, irregular pulse, loss of appetite, N/V, diarrhea, tachycardia, vision changes) |
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Report weight changes |
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Eat foods high in potassium |
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