Use the 6-second method to estimate the heart rate. Note: This strip represents exactly six seconds. 
A) 140
B) 84
C) 120
D) 70
Correct Answer:
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Q45: The control on the ECG machine that
Q46: Use the R-R method to estimate the
Q47: Use the 1500 method to estimate the
Q48: ECG machines are calibrated so that:
A)1 cm
Q49: Estimate the heart rate using the 1500
Q50: Which type of electrode is most commonly
Q51: You are preparing to perform an ECG
Q52: Use the 6-second method to estimate the
Q53: Which of the following conditions can an
Q54: Estimate the heart rate using the R-R
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