What should be monitored when treating heart failure with digoxin?

When treating heart failure with digoxin, monitoring the heart rate is crucial because digoxin has a direct impact on cardiac function. It increases the force of myocardial contractions, which can lead to changes in heart rate and rhythm. Digoxin can cause bradycardia, where the heart rate slows down excessively, which can be dangerous. Therefore, regular assessment of the heart rate helps ensure that it remains within a safe and therapeutic range. If the heart rate drops below a certain threshold, typically around 60 beats per minute, it may be necessary to hold the medication or consult a physician.

In contrast, while blood glucose levels, liver function tests, and body temperature are important indicators in a comprehensive health assessment, they are not specifically monitored as part of the routine management of patients receiving digoxin for heart failure. Thus, focusing on heart rate is a direct reflection of the medication's effects and is essential for safe and effective treatment management.