Cardiologist
Diagnose and treat diseases of the heart and blood vessels.
- $496,010
- 14+ years after high school
Healthcare career
Also called: Cardiac Sonographer · Cath Lab Technologist · EKG Technician · Vascular Technologist
What cardiovascular technologists do, what they earn, how long training takes and how to get started, with official BLS pay data and practical, job-level detail.
Cardiovascular technologists and technicians perform tests such as EKGs, echocardiograms, stress tests and cardiac catheterization support to help diagnose heart and vascular conditions. The median pay is $74,310 per year (BLS, May 2025), most people train for about 2 years, and employment is projected to grow +3.7% from 2025–35.
Pay data: BLS OEWS, May 2025 · Outlook: BLS 2025–35 · Checked October 15, 2026
Cardiovascular technologists are heart-testing specialists. Depending on their focus, they perform EKGs and stress tests, image the heart with ultrasound (echocardiography), scan blood vessels for clots and blockages, or assist cardiologists during catheterizations and stent procedures in the cath lab.
Most complete an associate degree in cardiovascular technology or sonography and earn credentials such as RDCS or RCIS. EKG technicians may train in short programs.
Technologists work in hospitals, cardiology clinics and imaging centers, including cath labs.
Schedule: Most work full-time; cath lab staff take call for heart attack emergencies.
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Half of cardiovascular technologists earned more than $74,310 and half earned less in May 2025. Pay ranged from about $39,000 for the lowest 10% to $121,350 for the top 10%.
Full cardiovascular technologist pay scale and hourly rates →
An associate degree in cardiovascular technology or sonography is typical; some earn a bachelor’s degree or train in shorter EKG programs.
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Our Cardiovascular Technologist training (12 hours, $109.99) covers the role, 15+ key terms, step-by-step procedures such as perform a 12-lead EKG and scan for a deep vein thrombosis, safety and how to land your first job.
Diagnose and treat diseases of the heart and blood vessels.
Use ultrasound to create images of organs, blood vessels and babies for diagnosis.
Take the X-rays and diagnostic images doctors use to find fractures, disease and injuries.
Room patients, take vitals, give injections and keep clinic records accurate.
Compare: Cardiovascular Tech vs. Cardiologist · Cardiovascular Tech vs. Sonographer · Cardiovascular Tech vs. Rad Tech · Cardiovascular Tech vs. Medical Assistant
An associate degree is typical.
EKG techs mainly do EKGs and monitoring; technologists perform advanced imaging or invasive procedures.
Cath lab staff usually take call.
The median annual wage for cardiovascular technologists was $74,310 ($35.73 per hour) in May 2025, according to the U.S. Bureau of Labor Statistics. The lowest 10% earned less than $39,000 and the highest 10% earned more than $121,350.
Most people need about 2 years of training. An associate degree in cardiovascular technology or sonography is typical; some earn a bachelor’s degree or train in shorter EKG programs.
No four-year degree is typically required. BLS lists “associate's degree” as the typical entry-level education.
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Reviewed by the Career Education Institute Curriculum Team. Pay figures are national estimates; local pay varies. See our editorial policy.