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What activity is occurring in the cardiac cycle within the green circle?  

Determine the heart rate.  

Which of the following describes when the myocardial cells recovers electrically?

Which of the following best describes Leads I, II, and III?

Which of the following best describes what the P wave represents?

Which of the following would NOT result in somatic tremor artifact?

Identify the following waveform:  

Which of the following best describes an electrocardiogram?

What activity is occurring in the following cardiac cycle within the green circle?  

Identify factors that effect the results of an EKG. (Select all that apply)