What a cardiac enzyme test checks.
Cardiac enzyme testing measures substances — most importantly troponin — that are released into the bloodstream when heart muscle is damaged, as happens during a heart attack. Elevated troponin levels are one of the clearest signs that the heart muscle has been injured.
We draw blood on arrival and run the test on-site, so results come back the same visit rather than requiring a send-out lab. This is combined with a 12-lead EKG and physician evaluation for a complete cardiac picture.
Why we order this test.
- —Chest pain, pressure or tightness
- —Pain spreading to the arm, jaw, neck or back
- —Shortness of breath with chest discomfort
- —Unexplained sweating, nausea or dizziness
- —Any symptom pattern suggestive of a heart attack
Having chest symptoms now?
Don't wait — walk in or call ahead.
Your visit, step by step.
Quick blood draw on arrival
A simple blood sample is all that's needed to start testing.
Paired with a 12-lead EKG
Gives a fuller picture of heart function alongside the enzyme levels.
Results in minutes
On-site lab means no waiting days for a send-out result.
Physician review & next steps
Your ER physician explains results and determines next steps immediately.
Why ER Of Fort Worth for cardiac testing.
Board-certified ER physicians
Interpret your results in context, on the spot.
On-site lab, not send-out
Most urgent care clinics can't run this test at all.
Open 24/7
Chest symptoms don't wait for business hours — neither do we.
All major insurance accepted
Plus transparent self-pay options.
Frequently asked questions.
What is troponin and why does it matter?
Troponin is a protein released into the blood when heart muscle is damaged. Elevated levels are one of the most reliable indicators of a heart attack, which is why it's a standard part of chest pain evaluation.
How long does it take to get results?
Our on-site lab typically returns troponin results within the same visit, often within an hour, rather than the days a send-out lab might take.
Will I need more than one test?
Sometimes. Troponin can take a few hours to rise after heart muscle damage, so we may repeat the test to confirm or rule out a heart attack.
Can urgent care run this test?
Most urgent care clinics don't have on-site cardiac enzyme testing or the equipment to manage an abnormal result if it comes back positive. This test is best done at a true ER.
What happens if my troponin is elevated?
Your ER physician will discuss the result, continue monitoring, and coordinate further cardiac evaluation or transfer for intervention if needed.
Care across North Texas.
We serve patients from Fort Worth and surrounding communities including:
Related care worth knowing about.
Cardiac enzyme testing is usually paired with an EKG and full heart attack evaluation. Want to know who reads your results? meet our board-certified ER physicians, or save time with online check-in for non-emergency visits.