Heart and blood vessel testing specialist
Cardiovascular technologists and technicians help doctors find and treat heart and blood vessel problems. They run heart tests, take ultrasound pictures of the heart, and assist during heart procedures.
You will explore what this career is really like, the different ways into it, and whether it fits you.
This takes about 15 minutes.
This career has three main types. EKG technicians record the heart's electrical signals and run stress tests. Cardiac and vascular sonographers use ultrasound to take pictures of the heart and blood vessels. Cardiovascular invasive specialists work in the "cath lab," helping doctors during procedures like placing stents.
The Reality: Your patients are often scared. Some are having a heart attack. You need steady hands, a calm voice, and sharp focus, because doctors make big decisions based on your work.
Your Responsibilities:
You are the doctor's eyes on the heart.
7:00 AM — Arrive at the heart center. Check the schedule: 9 patients today. Test the ultrasound machine.
7:30 AM — First patient: an echo (heart ultrasound). You press the probe on the chest and capture clear pictures of each heart valve.
9:00 AM — Stress test. The patient walks on a treadmill while you watch the heart rhythm and blood pressure. You stop the test when the doctor says.
10:30 AM — Emergency room calls. A patient may be having a heart attack. You run a quick EKG and send it to the cardiologist.
12:00 PM — Lunch (if things stay calm).
1:00 PM — Vascular ultrasound: check the leg veins for blood clots.
2:30 PM — A nervous patient needs extra time. You explain every step and keep them calm.
3:30 PM — Write up measurements and send them to the doctor.
Cath lab on-call — Some nights your phone rings. A heart attack patient is coming in. You have about 30 minutes to get to the hospital.
Focused, hands-on work with patients who are often scared, and on-call nights in some roles.
Training depends on which type you choose. EKG technician is a short certificate. Sonography and cath lab work take about 2 years or more.
Training Pathways:
Where to Train in North Dakota:
Before You Start: High school diploma or GED. For sonography: college anatomy and physiology, physics, math/statistics, and medical terminology, plus a strong GPA (Sanford asks for 3.0+). Background check, immunizations, and drug screen are required for clinicals. Patient care experience helps your application.
Tip: Start with financial aid, scholarships, and any help an employer offers — that is where the money starts. After that, ask a career counselor or Job Service North Dakota whether WIOA or other programs can help with what is left over, like tuition, exam fees, scrubs, or books. What can be paid for depends on the program and on your own situation, so ask before you sign up rather than after. Some ND hospitals also help pay for training if you agree to work for them afterward.
North Dakota requires a state license for sonographers and cath lab specialists. The ND Medical Imaging and Radiation Therapy Board licenses sonographers (including heart and vascular) and Registered Cardiovascular Invasive Specialists (RCIS). EKG technicians do not need a state license, but employers expect certification.
Credentials by Type:
The Exams: Most exams are computer-based multiple choice, about 2–3 hours. ARDMS sonography credentials need two exams: a physics exam (SPI) and a specialty exam.
Cost: About $125 for the EKG exam. Sonography and cath lab exams are about $250–$400 each. ND license fees are extra. Prices change, so check before you buy.
Keeping It Current: Credentials require continuing education (usually every 2–3 years). Your ND license must also be renewed.
North Dakota Cardiovascular Technologist and Technician Pay (May 2025):
What that means: The pay range is wide because the job types are different. EKG technicians are usually at the lower end. Sonographers and cath lab specialists are usually at the middle and top.
Jobs in North Dakota: About 90 people do this work in ND today. By 2034, that should be about 100 (about 9% growth). Expect about 10 job openings every year in ND from growth and people retiring or changing jobs. Across the U.S., the change is about 3% growth.
Outlook: Growing faster in ND than in the U.S. But it is a small field here, about 10 openings a year, mostly in the larger cities. Being willing to move or work in regional hospitals helps.
Who Hires in ND: Hospitals and heart centers in Fargo, Bismarck, Grand Forks, and Minot (such as Sanford, Essentia, CHI St. Alexius, Altru, and Trinity Health), plus some clinics.
Work Setting: Hospitals, heart centers, and clinics. Mostly daytime hours. Cath lab and some hospital roles include on-call nights and weekends.
Physical Demands: Moderate. On your feet much of the day. Moving and positioning patients. Sonographers hold the probe with pressure for long periods, which can strain the shoulder, wrist, and neck. Cath lab staff wear heavy lead aprons.
Sources: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, North Dakota, May 2025 (SOC 29-2031); North Dakota and U.S. long-term employment projections 2024–2034, via O*NET OnLine. Numbers are rounded.
Path 1: Advance from EKG to Sonography — Start as an EKG tech, then go back to school for echo.
Path 2: Specialize — Pediatric echo, fetal echo, vascular, or electrophysiology (heart rhythm).
Path 3: Cath Lab / RCIS — Move into the fast-paced procedure room.
Path 4: Lead Technologist or Manager — Run a heart testing department.
Path 5: Educator — Teach in a sonography program.
Path 6: Industry — Train others on heart equipment for medical device companies.
What's Great:
What's Hard:
Be Honest: Can you stay calm with scared patients? Are you ready for science and physics classes? Are you willing to relocate if needed? Can you handle on-call nights if you choose cath lab?
Everything on this page comes from these sources. Each one opens the page the information came from, so you can check it yourself or keep reading.
Pay and outlook figures on this page were taken from the sources above in September 2026. Occupation code: 29-2031.00. Numbers are updated by the agencies over time, so check the links for the newest figures.