What normally follows after the P wave on an EKG?

What normally follows after the P wave on an EKG?

• A. A T wave
• B. A flat line
• C. A QRS complex
• D. An arrhythmia

Answer: (C)

The P wave on an EKG represents atrial depolarization, which is the electrical activity corresponding to the contraction of the atria. Following the P wave, the next significant feature you would typically observe is the QRS complex. This complex indicates ventricular depolarization, which is crucial for triggering the contractions of the ventricles.

This sequence is essential for normal heart rhythm and ensures that there is effective coordination between the atria and the ventricles during the cardiac cycle. The QRS complex is composed of three waves (Q, R, and S) and reflects the rapid spread of electrical impulses through the ventricles. Thus, the correct answer highlights this standard sequence of electrical activity in a properly functioning heart as recorded on an EKG.