CRITICAL THINKING ACTIVITIES Practice locating the six chest leads on five individuals, Select individuals of both genders and of varying ages and body contours. Document each person’s name here after you have successfully located the chest leads. Document any prob. lems you encountered locating the leads, A. Chest Leads 1. 2 3. 4. B. ECG Cycle Attach part of an ECG from a recording. Identify and label the various waves, intervals, and segments making up an ECG cycle on two of the leads.