If the SA node is not functioning, an ECG will show . If the SA node is not functioning, an ECG will show . more P waves than QRS waves no P waves with a HR between 40-60 bpm higher P waves no QRS waves

The term "ECG" stands for electrocardiogram, which is an instrument created specifically to test a person's cardiorespiratory fitness while they are at rest.

When the SA node isn't working properly, an electrocardiogram (ECG) will typically show no P waves and a heart rate (HR) between 40 and 60 beats per minute (bpm).

Thus, If the SA node is not functioning, an ECG will show no P waves with an HR between 40-60 bpm, therefore the correct answer is option C

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your question seems incomplete, the complete question is as follows

If the SA node is not functioning, an ECG will show

a) higher P waves

b) no QRS waves

c) no P waves with an HR between 40-60 bpm

d) more P waves than QRS waves

If the SA node is not functioning, an ECG will show ________. If the SA node is not functioning, an ECG will show ________. more P waves than QRS waves no P waves with a HR between 40-60 bpm higher P waves no QRS waves

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What is an ECG?

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If the SA node is not functioning, an ECG will show . If the SA node is not functioning, an ECG will show . more P waves than QRS waves no P waves with a HR between 40-60 bpm higher P waves no QRS waves