What does each small square on an EKG represent?

What does each small square on an EKG represent?

• A. 0.04 seconds
• B. 0.1 seconds
• C. 0.2 seconds
• D. 0.5 seconds

Answer: (A)

Each small square on an EKG paper represents 0.04 seconds. This division is essential for measuring intervals such as the PR interval or the QRS duration accurately, as knowing the time represented by these squares allows clinicians to assess heart rhythms and identify any abnormalities. The standard EKG paper has a total grid pattern where each larger square consists of 5 smaller squares, and the larger square represents 0.2 seconds. This subdivision makes it easier to measure both short durations and intervals by counting the number of small squares involved in a particular waveform on the tracing. Thus, understanding that each small square is 0.04 seconds is key to interpreting the EKG correctly.

Each small square on an EKG paper represents 0.04 seconds. This division is essential for measuring intervals such as the PR interval or the QRS duration accurately, as knowing the time represented by these squares allows clinicians to assess heart rhythms and identify any abnormalities.

The standard EKG paper has a total grid pattern where each larger square consists of 5 smaller squares, and the larger square represents 0.2 seconds. This subdivision makes it easier to measure both short durations and intervals by counting the number of small squares involved in a particular waveform on the tracing. Thus, understanding that each small square is 0.04 seconds is key to interpreting the EKG correctly.