<span>The
answer to this question is electrocardiogram. Electrocardiogram or ECG is a
test that records the patient’s heartbeat and checks the electrical activity of
the patient’s heart. The electrodes that are placed on the skin of the patient
to capture the magnitude of the heart’s electrical depolarization and to check
any presence of heart muscle damage. </span>
Answer:
it's so nostalgic
(I need 20 characters ignore this part lol)
It's true that sodium is a principle extracellular electrolyte.
Answer:class of compounds of carbon
Explanation: