A professional who analyzes data from cardiac-function monitoring device (Holter monitor) worn by patient for use in diagnosis of cardiovascular disorders. Responsibilities include:

• Places magnetic tape or cassette from Holter monitor worn by patient in scanner and starts scanner that produces audio and visual representation of heart activity.
• Adjusts scanner controls that regulate taped sounds associated with heart activity and focus video representation of sounds on scanner screen.
• Observes scanner screen to identify irregularities in patient cardiac patterns, utilizing knowledge of regular and irregular cardiac-function patterns, or verifies data provided by computer program that automatically scans, analyzes, identifies, and prints irregular heart patterns.
• Prints sections of abnormal heart patterns or full disclosure tape for physician.
• Analyzes information in patient diary to identify incidents that correspond to heart pattern irregularities detected on heart monitor.
• Records findings on report form and forwards tapes, form, patient diary, and printouts of heart patterns to interpreting physician.
• May attach electrodes to patient's chest and connect electrodes to heart monitor, following standard procedure.
• May measure distances between peaks and valleys of heart activity patterns, using calipers, to obtain data for further analysis.
• May perform other diagnostic procedures, such as electrocardiography and stress testing, to aid in medical evaluation of patient.