RN Basic Medication Administration Practice Exam

Monitoring for digoxin toxicity involves a comprehensive safety check that combines heart rate assessment, kidney function, electrolyte balance, symptom surveillance, and drug level if ordered. The pulse check before administration is essential because digoxin can slow AV conduction and cause dangerous bradycardia; if the pulse is too low, the dose should be held. Because digoxin is cleared by the kidneys, evaluating renal function is crucial—impaired kidneys raise the chance of drug buildup and toxicity. Potassium levels matter too: hypokalemia increases digoxin’s effects and risk of toxicity, so potassium is monitored and corrected as needed. Be vigilant for the characteristic signs across systems—GI symptoms like nausea, vomiting, and loss of appetite; vision changes such as blurred vision or yellow-green halos; and cardiac issues including various arrhythmias. If a digoxin level is ordered, obtaining it helps interpret whether the patient is within the therapeutic range and guides management, especially when toxicity is suspected. This broad monitoring approach is necessary because focusing on only one symptom or measurement (like blood pressure or headaches) can miss the key early warning signs of toxicity and puts the patient at risk.