What is an EP study?

Electrophysiology is a field of heart and vascular care that focuses on your heart’s electrical activity. Cardiologists who specialize in this field, called electrophysiologists, use specialized equipment and perform procedures to diagnose and treat irregular rhythms, or arrhythmias, when your heart’s electrical system doesn’t work properly.

One common diagnostic test electrophysiologists perform is an electrophysiology (EP) study. This study gives physicians a detailed look at your heart’s electrical activity and helps determine appropriate treatments for improving your heart rhythm.

doctor performing a electrophysiology on a patient

What is an EP study used for?

EP studies can diagnose many different types of arrhythmias. Atrial fibrillation (AFib) is the most common type.

What to expect with an EP study

An EP study can be done as an outpatient procedure or during a hospital stay, depending on your condition and the healthcare provider’s approach. Usually, the process involves the following steps:

Before the procedure

You will need to avoid eating or drinking anything the night before your study. Your care team will let you know if or when you need to stop taking medications.

If you have diabetes, tell your doctor about your diet and insulin regimen, as it can affect blood sugar levels and your results.

EP study side effects

EP studies are safe and effective procedures with minimal side effects. Mild soreness and bruising where the IV was inserted are normal, but if your incision begins to bleed, call your physician.

Also, call your physician if you experience any of the following symptoms:

  • Bruising that gets worse instead of better
  • Color changes, swelling, discharge, numbness or tingling in the area where the IV was inserted
  • Fever
  • Shortness of breath

Next steps after an EP study

Once your electrophysiologist identifies the type of arrhythmia you have and its cause, they can recommend treatment options, such as:

  • A Holter monitor or other device that monitors your heart rhythm as you go about your daily activities
  • An implantable cardiac defibrillator or pacemaker to regulate your heart rhythm
  • Catheter ablation, a procedure in which your doctor scars the heart tissue causing your arrhythmia
A Holter monitor that monitors your heart rhythm

Find a location near you

You will find expert, personalized care at all Baylor Scott & White EP lab locations. No matter which lab you visit, you can find convenient follow-up care and additional cardiology services at our locations across Central and North Texas.

Accepting walk-ins

Baylor Scott & White Arrhythmia Management - Denton

3333 Colorado Blvd , Denton, TX, 76210

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Frisco at PGA Parkway

16050 Everwell Ln Ste 210, Frisco, TX, 75033

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Garland

7217 Telecom Pkwy Ste 205, Garland, TX, 75044

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Grapevine

2020 W State Hwy 114 Ste 320, Grapevine, TX, 76051

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Highland Village

1401 Shoal Creek Ste 240, Highland Village, TX, 75077

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - McKinney

5236 W University Dr POB I, Ste 4900, McKinney, TX, 75071

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Plano

1820 Preston Park Blvd Ste 1450, Plano, TX, 75093

Not accepting walk-ins

Baylor Scott & White Arrhythmia Management - Prosper

111 S Preston Rd Ste 10, Prosper, TX, 75078

Not accepting walk-ins

Not accepting walk-ins

Baylor Scott & White Cardiology Consultants of Texas - Greenville

4400 Interstate 30 W Ste 300, Greenville, TX, 75402

Not accepting walk-ins

Not accepting walk-ins

Baylor Scott & White Cardiology Consultants of Texas - Midway

4431 E US Hwy 287 , Midlothian, TX, 76065

Not accepting walk-ins

Baylor Scott & White Cardiology Consultants of Texas - Park Cities

9101 N Central Expy Ste 300C, Dallas, TX, 75231

Not accepting walk-ins

Baylor Scott & White Cardiology Consultants of Texas - Red Oak

301 E Ovilla Rd Ste 100, Red Oak, TX, 75154

Not accepting walk-ins

Baylor Scott & White Cardiology Consultants of Texas - Waxahachie

2360 N Interstate 35E Ste 110, Waxahachie, TX, 75165

Not accepting walk-ins

Baylor Scott & White Cardiovascular Specialists - Mesquite

5308 N Galloway Ave Ste 201, Mesquite, TX, 75150

Not accepting walk-ins

Baylor Scott & White Cardiovascular Specialists - Rockwall

6705 Heritage Pkwy Ste 202, Rockwall, TX, 75087

Not accepting walk-ins

Baylor Scott & White Clinic - College Station Rock Prairie

800 Scott and White Dr , College Station, TX, 77845

Not accepting walk-ins

Baylor Scott & White Clinic - Round Rock 302 University

302 University Blvd , Round Rock, TX, 78665

Not accepting walk-ins

Baylor Scott & White Clinic - Temple

2401 S 31st St , Temple, TX, 76508

Not accepting walk-ins

Baylor Scott & White Cottonwood Cardiology - Grand Prairie

2740 N State Highway 360 Ste 100, Grand Prairie, TX, 75050

Not accepting walk-ins

Baylor Scott & White Cottonwood Cardiology - Irving

1110 Cottonwood Ln , Irving, TX, 75038

Not accepting walk-ins

Baylor Scott & White Cottonwood Cardiology - Lake Ridge

3095 Kingswood Blvd Suite 250, Grand Prairie, TX, 75052

Not accepting walk-ins

Baylor Scott & White Hillcrest Cardiology Clinic

50 Hillcrest Medical Blvd Ste 303, Waco, TX, 76712

Not accepting walk-ins

Baylor Scott & White Medical Center - Austin

5245 W US Hwy 290 Service Rd , Austin, TX, 78735

Accepting walk-ins

Baylor Scott & White Medical Center - Brenham

700 Medical Pkwy , Brenham, TX, 77833

Accepting walk-ins

Baylor Scott & White Medical Center - Centennial

12505 Lebanon Rd , Frisco, TX, 75035

Accepting walk-ins

Baylor Scott & White Medical Center - College Station

700 Scott and White Dr , College Station, TX, 77845

Accepting walk-ins

Baylor Scott & White Medical Center - Grapevine

1650 W College St , Grapevine, TX, 76051

Accepting walk-ins

Baylor Scott & White Medical Center - Hillcrest

100 Hillcrest Medical Blvd , Waco, TX, 76712

Accepting walk-ins

Baylor Scott & White Medical Center - Lake Pointe

6800 Scenic Dr , Rowlett, TX, 75088

Accepting walk-ins

Baylor Scott & White Medical Center - Lakeway

100 Medical Pkwy , Lakeway, TX, 78738

Accepting walk-ins

Baylor Scott & White Medical Center - McKinney

5252 W University Dr Highway 380 at Lake Forest Drive, McKinney, TX, 75071

Accepting walk-ins

Baylor Scott & White Medical Center - Plano

4700 Alliance Blvd , Plano, TX, 75093

Accepting walk-ins

Baylor Scott & White Medical Center - Taylor

305 Mallard Ln , Taylor, TX, 76574

Accepting walk-ins

Baylor Scott & White Medical Center - Temple

2401 S 31st St , Temple, TX, 76508

Accepting walk-ins

Baylor Scott & White Medical Center - Waxahachie

2400 N Interstate 35E , Waxahachie, TX, 75165

Accepting walk-ins

Baylor Scott & White Specialty Clinic - Killeen Hemingway

2405 S Clear Creek Rd , Killeen, TX, 76549

Not accepting walk-ins

Baylor Scott & White Specialty Clinic - Lakeway

200 Medical Pkwy , Lakeway, TX, 78738

Not accepting walk-ins

Baylor Scott & White Texas Cardiac Associates - Forney

763 E US Hwy 80 Ste 240, Forney, TX, 75126

Not accepting walk-ins

Baylor Scott & White Texas Cardiac Associates - Rowlett

7801 Lakeview Pkwy Ste 100, Rowlett, TX, 75088

Not accepting walk-ins

Baylor Scott & White Texas Cardiac Associates - Royse City

6257 FM 2642 Blvd Ste 100, Royse City, TX, 75189

Not accepting walk-ins

Baylor Scott & White The Heart Hospital - Denton

2801 S Mayhill Rd , Denton, TX, 76208

Accepting walk-ins

Baylor Scott & White The Heart Hospital - Fort Worth

1400 8th Ave Bldg A, 6th Floor, Fort Worth, TX, 76104

Accepting walk-ins

Baylor Scott & White The Heart Hospital - McKinney

5268 W University Dr , McKinney, TX, 75071

Accepting walk-ins

Baylor Scott & White The Heart Hospital - Plano

1100 Allied Dr , Plano, TX, 75093

Accepting walk-ins

Baylor Scott & White The Heart Hospital Heart Rhythm Center - Plano

4716 Alliance Blvd Pavilion II, Ste 300, Plano, TX, 75093

Not accepting walk-ins