Interventional Cardiology
Cardiac Stress Testing & Advanced Diagnostics
Cardiac stress testing measures how your heart performs under exertion, using treadmill exercise or medication combined with imaging. It helps detect blockages, arrhythmias, and heart-function problems before they become emergencies.
AVERAGE PROCEDURE TIME
60 to 120 minutes
Anesthesia
None
Recovery
Immediate
Ride home
Required if you receive sedation
Overview
Stress testing shows how your heart behaves when it works harder. You either walk on a treadmill or receive a medication that mimics exercise while imaging and EKG record the response.
It detects blockages, rhythm problems, and pumping abnormalities long before they cause an emergency, and it guides whether catheterization is needed.
Is this right for me?
Candidacy is confirmed after a review of your history, imaging, and medications. Patients we most often treat include those with:
- Chest discomfort or breathlessness with exertion
- Risk-factor screening before surgery or an exercise program
- Follow-up after stenting or bypass
- Evaluation of known coronary disease
What to expect, step by step
Arrival and preparation
You check in with a coordinator, change into a gown, and meet your nurse. Vitals are taken, an IV is started if needed, and your care team reviews the plan and answers questions with your caregiver present.
Baseline imaging
Resting images and an EKG are recorded for comparison.
Stress phase
You walk a graded treadmill protocol or receive a pharmacologic agent while your rhythm, pressure, and symptoms are monitored continuously.
Post-stress imaging
Images are repeated at peak effect and compared with the resting study.
Recovery suite
You rest in a private recovery bay while your nurse monitors vitals and comfort. Written instructions are reviewed with you and your caregiver before discharge.
Home the same day
A caregiver drives you home. A member of our team calls the next business day to check on you and confirm your follow-up appointment.
Recovery
There is no sedation, so you can drive yourself home unless told otherwise.
Results are typically read and communicated within one business day.
Risks and what we watch for
Every procedure carries risk. These are the ones we discuss most often for this procedure.
- Bleeding, bruising, or soreness at the access site or incision
- Infection, which is why sterile technique and, when indicated, antibiotics are used
- Reaction to sedation, anesthesia, or contrast dye, monitored continuously by your anesthesia provider
- Incomplete relief of symptoms, or symptoms that return over time
- The need for additional treatment, imaging, or a different procedure
- Rarely, a complication serious enough to require a higher level of care than an outpatient setting provides
We review these with you in detail before you consent, and you can change your mind at any point.
Coverage note
We verify your benefits and give you a written estimate before scheduling.
Prepare for this procedure
- Before your surgery
- The day of your procedure
- Anesthesia and sedation
- Recovery at home and when to call
Frequently asked questions
Should I hold my medications?
Some beta blockers and caffeine are held before testing. You receive a written list at scheduling.
What if I cannot walk on a treadmill?
A medication-based study provides the same information without exercise.
Is cardiac stress testing done as an outpatient procedure?
Yes. It is performed at our ACHC-accredited ambulatory surgery center in The Woodlands, minutes from Tomball and Spring, and patients go home the same day with a caregiver.
Will my insurance cover it?
Coverage depends on your specific plan and benefits. Our team verifies your benefits and gives you a written estimate before anything is scheduled.
Do you offer Spanish-speaking support?
Yes. Bilingual English and Spanish coordination is available from your first call through recovery instructions and follow-up.

