Sirolimus, LC/MS/MS
Test Code
36712
80195
Clinical Significance
Sirolimus, LC/MS/MS - Sirolimus is an immunosuppressant drug used to prevent organ graft rejection. Therapeutic drug monitoring is used to optimize dose and avoid toxicity. Peak concentrations are reached in 2 hours following oral administration. Elimination half-life in males is approximately 72 hours; in females approximately 61 hours.
Test Details
Collect specimen 1 hour prior to next dose (12 hour trough)
Methodology
Chromatography/Mass Spectrometry
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Reference Range(s)
3.0-18.0 ng/mL
Alternative Name(s)
Rapamycin, Rapamune®
Preferred Specimen(s)
2 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
1 mL
Transport Container
EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 5 days
- Refrigerated: 7 days
- Frozen: 30 days
Reject Criteria
Clotted specimen
Setup Schedule
2 mL whole blood collected in an EDTA (lavender-top) tube
1 mL
EDTA (lavender-top) tube
Room temperature
Room temperature: 5 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Clotted specimen