Laboratory Services

Sirolimus, Whole Blood

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Updated Test Information:

Test Description
Sirolimus, Whole Blood
Synonym(s)

Rapamune, Rapamycin, Sirol, UOW2750

Test ID
SIROLG
General Information

The concentration of sirolimus in whole blood is determined by liquid chromatography-tandem mass spectrometry after protein precipitation. The reportable range is 1.0 to 700.0 ng/mL with imprecision of less than 11 %CV.

Container Type

3 mL blood in a Lavender top tube. Trough specimen preferred.

Specimen Type

Whole Blood

Specimen Requirements

Entire Sample

Specimen Collection / Processing Instructions

Refrigerate whole blood, do not centrifuge. Frozen sample acceptable - Do not repeat freeze-thaw cycle

Minimum Sample Volume

1.5 mL whole blood for 3 mL Lavender Liquid EDTA (K3 EDTA); 0.5 mL whole blood for 3 mL Lavender Dry EDTA (K2 EDTA)

Stability

Refrigerate whole blood 5 days. Frozen sample acceptable - Do not repeat freeze-thaw cycle

Department (code)

Chemistry, University (CHU)

Methodology

Whole blood protein precipitation. Analysis by liquid chromatography - tandem mass spectrometry.

Estimated TAT

1 Day

Testing Schedule

Daily

Test Includes

Code               Name
SIROL            Sirolimus
SIRINF          Sirolimus Information

CPT Code(s)

80195

Reference Range

Whole blood trough Sirolimus concentrations of 5 - 15 ng/mL are effective in reducing the incidence of acute rejection in renal transplant patients when Sirolimus is used as part of a combined immunosuppressive regimen.

STAT Orderable (Y/N)

No

Performing Lab

UW

LOINC Code(s)