EKG stands for what?

• A. Electroencephalogram
• B. Electromyography
• C. Electrocardiogram
• D. Endocardial Graft

Answer: (C)

The main idea here is understanding what the abbreviation EKG represents. EKG stands for electrocardiogram, the test that records the heart’s electrical activity as it beats. This electrical activity is what coordinates the heart’s rhythm, and capturing it with multiple leads helps clinicians detect abnormalities such as irregular heartbeats, ischemia, or other cardiac conditions. Remember that the EKG/ECG tracing shows characteristic waves (P, QRS, T) that reflect the different phases of the cardiac cycle.

The other options point to different systems or procedures: an electroencephalogram measures brain electrical activity; electromyography measures electrical activity of muscles; an endocardial graft refers to a surgical graft involving the heart’s inner lining, not a recording of electrical activity. It’s also worth noting that EKG is simply another spelling of ECG, with the same meaning, originating from German.