Digoxin

Generic Name

digoxin

Trade Name

Lanoxin

Indication

CHF, A-fib, A-flutter

Action

Positive inotropic effect (increases force of myocardial contraction), prolongs refractory period, ↓ conduction through SA and AV nodes.  Essentially digoxin is given to increase cardiac output and slow the rate.

Therapeutic Class

antiarrhythmic, inotropics

Pharmacologic Class

digitalis glycosides

Nursing Considerations

Excreted by kidneys

Assess patient for hypersensitivity

Contraindicated with uncontrolled ventricular arryhtmias

Hypokalemia increase risk for toxcicity

Hypercalcemia ↑ risk for toxicity

Use caution with diuretic use as they may cause electrolyte abnormalities that can lead to toxicity

Assess patient for cardiac arrythmias including bradycardia

Signs of toxicity include vision changes (blurred vision, yellow, green vision disturbances)

Monitor pulse rate for 1 full minute prior to dosing patient (hold for pulse <60)