Cardiologists

A look at the work

• Administer emergency cardiac care for life-threatening heart problems, such as cardiac arrest and heart attack.
• Advise patients and community members concerning diet, activity, hygiene, or disease prevention.
• Answer questions that patients have about their health and well-being.
• Calculate valve areas from blood flow velocity measurements.
• Compare measurements of heart wall thickness and chamber sizes to standards to identify abnormalities, using the results of an echocardiogram.
• Conduct electrocardiogram (EKG), phonocardiogram, echocardiogram, or other cardiovascular tests to record patients' cardiac activity, using specialized electronic test equipment, recording devices, or laboratory instruments.
• Conduct exercise electrocardiogram tests to monitor cardiovascular activity under stress.
• Conduct research to develop or test medications, treatments, or procedures that prevent or control disease or injury.

A selection of source-listed tasks; duties vary by role and employer.

Interests involved in this work

These source scores describe occupational work activities. They are separate from your personal test results.

Skills to explore

Source-reported importance on a 1–5 scale. Try a course, project or conversation to learn what these skills involve.

Skill observations are not available in the current source release.

Plan a small next step

Talk to someone doing this work, look for a supervised activity, and explore the subjects that interest you. Admission, licensing and current program requirements should be confirmed with the relevant institutions.

Source preparation category: Job Zone 5 of 5 · 2021-11. This category describes typical preparation, not your eligibility.

Related study fields

Source crosswalk connections are research leads, not required qualifications.

Medicine →

Osteopathic Medicine/Osteopathy →

Cardiovascular Disease Fellowship Program →

Clinical Cardiac Electrophysiology Fellowship Program →

Interventional Cardiology Fellowship Program →

Pediatric Cardiology Fellowship Program →

Source & methodology

O*NET-SOC code 29-1212.00 · Database 31.0 · Retrieved Oct 14, 2026. Dates on individual observations describe their source periods.

Data: O*NET® 31.0 Database, U.S. Department of Labor, Employment and Training Administration. Used under CC BY 4.0. StudyIndex normalizes the presentation and adds exploration features; USDOL/ETA has not approved, endorsed or tested these additions.