Liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Rejection Criteria
Gross hemolysis
Reference Range(s)
Specimen Requirements
Preferred Specimen
Serum Separator Tube
Minimum Volume
0.4 mL serum
Sample Stability
1 day room temperature 1 week refrigerated 3 months frozen
Transport Temperature
Frozen
Collection Instructions
Transfer serum to a plastic transport tube.
Clearly label tube as serum. Freeze.
When multiple tests are ordered, submit separate tube for
this test.
Alternative Specimen
1 mL serum from a plain red top tube. Allow sample toclot in an upright position for at least 60 minutes, thencentrifuge sample and transfer serum to a plastic transporttube within 2 hours of collection. Clearly label tube asserum from a plain red top tube
