BI-2275
The heart
Biology · Secondary 4 · Medium · The heart
A student measures the heart rate of a patient by recording a pressure trace from the left ventricle. One complete cardiac cycle on the trace takes 0.75 s.
What is the patient’s heart rate in beats per minute?
What is the patient’s heart rate in beats per minute?
- 80 beats per minute
- 45 beats per minute
- 90 beats per minute
- 120 beats per minute
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