Preferred Container: 1 x 0.6 mL Green Lithium Heparin with Gel Microtainer
Alternate Container: 1 x 0.6 mL Amber Microtainer with Gel
1 x 1 mL Green Lithium Heparin Tube with Gel
1 x 1 mL Red/Black Serum Separator (SST) Vacutainer
Sample Type: Blood
Special Collection Instructions: Consult 'TCH Drug Information and
Formulary' site provided by TCH Pharmacy Department, for
therapeutic drug administraion and collection instructions. Drug Information and Formulary
Interfering Substances: High Salicylate and Alkaline Phosphatase
Testing Frequency: Daily
Expected Turn Around Time: Same day
Methodology: Two-point rate
Reference Ranges: 10-20. Toxic >20
Unit of Measure: UG/ML
Test Performed By: Texas Children's Hospital Pathology Services

Available at TCH Main Campus: 832-824-5152
6621 Fannin, MC 1-2261
Houston, TX 77030-2399

Available at TCH West Campus: 832-227-1700
18200 Katy Freeway
Houston, TX 77094

Available at TCH Woodlands Campus: 936-267-5200
17600 Interstate 45 South
The Woodlands, TX 77384
Lab Section: Chemistry