Question

select the correct answer.
how do doctors detect abnormalities in patients with the help of an ekg?
a. by determining changes in the heartbeat
b. by determining changes in blood pressure
c. by determining changes in blood components
d. by determining changes in arterial blood flow

Explanation:

An EKG (Electrocardiogram) measures the electrical activity of the heart, which reflects the heartbeat's rhythm and patterns. Changes in the heartbeat (like arrhythmias, irregularities) are detected via EKG. Blood pressure is measured with a sphygmomanometer, blood components with tests like CBC, and arterial blood flow with methods like Doppler ultrasound, not EKG. So the correct option is A.

Answer:

A. by determining changes in the heartbeat