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What They Do

Cardiologists Career Video

About This Career

Diagnoses, treats, manages, and prevents diseases or conditions of the cardiovascular system. May further subspecialize in interventional procedures (e.g., balloon angioplasty and stent placement), echocardiography, or electrophysiology.

This career is part of the Health Science cluster Therapeutic Services pathway.

A person in this career:

  • Administers emergency cardiac care for life-threatening heart problems, such as cardiac arrest and heart attack.
  • Advises patients and community members concerning diet, activity, hygiene, or disease prevention.
  • Answers questions that patients have about their health and well-being.
  • Calculates valve areas from blood flow velocity measurements.
  • Compares measurements of heart wall thickness and chamber sizes to standards to identify abnormalities, using the results of an echocardiogram.
  • Conducts electrocardiogram (EKG), phonocardiogram, echocardiogram, or other cardiovascular tests to record patients' cardiac activity, using specialized electronic test equipment, recording devices, or laboratory instruments.
  • Conducts exercise electrocardiogram tests to monitor cardiovascular activity under stress.
  • Conducts research to develop or test medications, treatments, or procedures that prevent or control disease or injury.
  • Conducts tests of the pulmonary system, using a spirometer or other respiratory testing equipment.
  • Designs and explains treatment plans, based on patient information such as medical history, reports, and examination results.

Working Conditions and Physical Demands

People who do this job report that:

  • You would often handle loads up to 10 lbs., sometimes up to 20 lbs. You might do a lot of walking or standing, or you might sit but use your arms and legs to control machines, equipment or tools.
  • Work in this occupation involves use of protective items such as safety shoes, glasses, gloves, hearing protection, a hard hat, or personal flotation devices
  • Exposed to disease and infections more than once a month through work such as patient care, laboratory work, and sanitation control
  • Work in this occupation involves using your hands to hold, control, and feel objects more than one-third of the time
  • Work in this occupation requires being inside most of the time

Work Hours and Travel

  • Irregular hours
  • Overtime work
  • Weekend work


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  • 1-800-GO-TO-XAP (1-800-468-6927)
    From outside the U.S., please call +1 (424) 750-3900
  • North Dakota Career Resource Network
    ndcrn@nd.gov | (701) 328-9733