What is the purpose of an EKG?

The primary purpose of an EKG, or electrocardiogram, is to measure the electrical activity of the heart. This non-invasive test records the heart's rhythm and electrical impulses, allowing healthcare professionals to identify any abnormalities in heart function, such as arrhythmias, ischemia, or previous heart attacks. By interpreting the patterns produced on the EKG tracing, providers can assess how well the heart is functioning and whether there are issues related to the heart's structure or electrical conduction pathways.

The other options refer to different physiological measurements that are not related to the EKG's function. For instance, measuring blood pressure provides insight into the force of blood against artery walls, evaluating lung function focuses on respiratory health, and assessing body temperature measures the body’s thermal state. These tests serve distinct purposes in clinical assessments, underscoring the specialized role of the EKG in cardiology and overall heart health monitoring.