Question:
In an ECG of a normal healthy person, the duration of the R-R interval is about:
In an ECG of a normal healthy person, the duration of the R-R interval is about:
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The R-R interval in an ECG represents one full cardiac cycle and can be used to calculate heart rate.
Updated On: Mar 12, 2025
- 0.12 sec
- 0.08 sec
- 0.8 sec
- 0.4 sec
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the R-R Interval in ECG
- The R-R interval represents one complete cardiac cycle.
- It is used to determine heart rate.
Step 2: Calculating the Interval
- The normal resting heart rate is 60-100 beats per minute.
- The R-R interval is approximately 0.8 seconds for a heart rate of 75 bpm.
Step 3: Conclusion
Since the R-R interval is about 0.8 seconds, the correct answer is Option (3).
- The R-R interval represents one complete cardiac cycle.
- It is used to determine heart rate.
Step 2: Calculating the Interval
- The normal resting heart rate is 60-100 beats per minute.
- The R-R interval is approximately 0.8 seconds for a heart rate of 75 bpm.
Step 3: Conclusion
Since the R-R interval is about 0.8 seconds, the correct answer is Option (3).
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