Outpatient Diagnostic and Laboratory Services

Many of our ERs offer a comprehensive range of outpatient diagnostic and laboratory services. Outpatient services include:

  • Imaging services, such as:
    • Digital X-ray
    • Computed Tomography (CT) scanning
  • Laboratory tests
  • Sports physicals (available March through August for $10)

Diagnostic, imaging and lab appointments are available on a same-day, walk-in basis, so you can get test results more quickly. Discounted rates are available for cash payments.

Laboratory Cash Pricing

  • Heart Screen Lipid Panel: $15
  • Complete Wellness Screen: $20
  • Men’s Health Check: $30
  • Women’s Health Check: $30
  • Diabetes Screening: $15
  • Thyroid Panel: $20
  • Complete blood count (CBC): $14

Radiology Cash Pricing

  • CAT scan with contrast: $300
  • CAT scan without contrast: $300
  • CAT scan with and without contrast: $350
  • X-Rays: $50

Physician order required for all radiology procedures


  • Digital X-ray and CT scanning: 7 a.m. to 10 p.m., seven days per week*

Call 956-388-2190 to schedule, or just walk in during the hours listed above.


South Texas Health System ER Mission
900 E. Expressway 83
Mission, TX 78572

South Texas Health System ER Weslaco
330 W. Expressway 83
Weslaco, TX 78596

South Texas Health System ER Ware Road
3700 West Nolana Ave
McAllen, TX 78504

South Texas Health System ER Monte Cristo
3615 N. Interstate 69C
Edinburg, TX 78541

South Texas Health System ER McColl
4702 S. McColl Road
Edinburg, TX 78539

South Texas Health System ER Alamo
140 East Frontage Rd.
Alamo, TX 78516

* Not all services available at all locations. If your insurance requires authorization, you may need to wait for approval before we can complete the scan.