Question

By counting the number of which of the following waves, the heartbeat of a person can be determined?

• A. P-wave
• B. QRS complex
• C. ST-segment
• D. PQ interval

Answer 1

Answer:

B. QRS complex

• By counting the number of QRS complexes that occur in a given period, one can determine the heartbeat rate of an individual.

• Any deviation from the shapes of the curve indicates a possible abnormality or a disease.

• Hence, it is of great clinical significance.