Skip to Main Content
A woman visits her family member in the hospital during visiting hours.

Preparing for Your Procedure

Pre-Admission Testing Centers

The technologically advanced lab facilities at St. Luke’s Health provide comprehensive lab testing for all outpatients and surgical patients. Our facility hours have been extended to better accommodate your schedule, including additional times available before and after regular working hours. To schedule your pre-admission or lab testing or if you have questions about pre-admission testing, contact the phone number below to speak to a pre-admission testing (PAT) representative.


Baylor St. Luke's Medical Center

Pre-Admission Testing Center
O'Quinn Medical Tower
6624 Fannin, Suite 1280
Houston, TX 77030

Monday – Friday
8:00 a.m. – 5:00 p.m.


Patients Medical Center

Pre-Admission Testing Center
4500 East Sam Houston Pkwy South, Suite 102
Pasadena, TX 77505

Walk-ins: Monday-Friday 8:00 a.m. – 3:00 p.m.
Appointments: Monday-Friday 3:00 p.m. – 4:30 p.m.


Sugar Land Hospital

Pre-Admission Testing Center
1317 Lake Pointe Pkwy
Rm 296 
Sugar Land, TX 77478

Monday – Friday
8:00 a.m. – 5:00 p.m.


The Woodlands Hospital

Pre-Admission Testing Center
17200 St. Luke's Way
The Woodlands, TX 77384

Monday – Friday
8:00 a.m. – 5:00 p.m.


The Vintage Hospital

Pre-Admission Testing Center
20171 Chasewood Park Dr
Rm 1.410
Houston, TX 77070

Monday – Friday
7:00 a.m. – 4:00 p.m.

Day of Procedure

Every patient is unique, and your physician will be most familiar with your particular needs. Therefore, it’s important to follow your physician’s instructions. The following routine, however, is typical of what you should do prior to a procedure:

  • Eating and Drinking
    Do NOT eat or drink anything after midnight the day of your procedure or as specified by your physician. Remember NOT to swallow water when brushing your teeth.
  • Bathing
    The night before or morning of your procedure, bathe or shower as usual. Your doctor may ask that you use antiseptic soap. Refrain from using perfumes, fragrant lotions or powders.
  • Valuables
    Please do NOT bring valuables, such as jewelry, wallets, purses or personal items to the hospital.
  • Clothing
    Wear loose-fitting clothes or pajamas and a robe. Shorts are recommended for knee surgery.
  • Medications
    Give to your physician a list of all medications taken regularly, including herbal supplements and vitamins. During your stay at the hospital, all medications needed and ordered by your physician will be provided to you.
  • Smoking
    Limit or abstain from smoking before your procedure. Smoking is not permitted on St. Luke's Health premises.
  • Illness
    Notify your physician if you develop a sore throat, cold, fever or other symptoms prior to your procedure.


After Your Procedure

  • Recovery
    After a procedure, patients who have been given a general anesthetic awaken under observation in the post-anesthesia care unit. Staff and your anesthesia provider will monitor your vital signs. The average recovery time is one to two hours. Depending on your physician’s orders, you may be discharged or admitted to St. Luke's Health.
  • Discharge
    For health and safety reasons, you will NOT be allowed to drive yourself home following your procedure. Please make arrangements for someone to drive you home. It’s also strongly advised that you arrange to have someone stay with you for 24 hours following your discharge from St. Luke's Health.

You will be provided a set of instructions and a phone number to call in the event you have additional questions or concerns. Remember to follow all instructions carefully to ensure a quick and safe recovery. A St. Luke's Health representative will contact you 24 to 48 hours after your discharge regarding your recovery.

For immediate medical attention following discharge, call 9-1-1.

Find a Doctor

Looking for a doctor? Perform a quick search by name or browse by specialty.

Find a Doctor

Virtual Visits | Care From the Comfort of Your Own Ho

Find a Doctor

Looking for a doctor? Perform a quick search by name or browse by specialty.