Electrocardiogram (ECG) waveforms are printed on graph paper that is divided by light and dark vertical and horizontal lines at standard intervals. When the nurse is interpreting the heart rhythm, he or she understands that each large block equals how many seconds?
a) 0.3
b) 0.2
c) 0.1
d) 0.4
Answer: b) 0.2
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.