Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Useful for monitoring compliance and assessing toxicity in overdose situations.
ADULT: Therapeutic: 50 - 300 ng/mL; Toxic: > 750 ng/mL. CHILD (0 - 11 yrs): Therapeutic: 30 - 80 ng/mL; Toxic > 200 ng/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Days Test Performed
Soft Order Code
Warde CHLPR (ARUP 0090870)
Looking to Order a Test?
We’ve provided helpful links to make ordering easy.
All specimens should be accompanied by a requisition.
Learn about how to properly label and where to ship specimens.
MLabs provides all the supplies necessary for the collection of specimens.
Visit our provider FAQ and learn about common questions to ordering tests.
Offsite Collection Instructions
Collect blood in a red top tube; do not use SST tube. Centrifuge, aliquot serum into plastic vial within 2 hours of collection, and refrigerate.
SST tube not acceptable.
2 mL serum
1 mL serum
Test sent to Warde Medical Laboratory; performed by ARUP Laboratories.