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Vitamin B6 (Pyridoxal 5-Phosphate), Plasma, NY State
Male: 5.3−46.7 μg/L; female: 2.0−32.8 μg/L
|Methodology:||Liquid chromatography-tandem mass spectrometry (LC/MS-MS)|
Collect: Lavender-top (EDTA) tube - 0.5 ml plasma.
Specimen Preparation: Collect blood by venipuncture into a Lavender-top tube containing EDTA and mixed immediately by gentle inversion at least six times to ensure adequate mixing. The specimen must be separated and protected from light in an amber transport tube with amber stopper. Specimens should be stored refrigerated or frozen immediately and maintained at temperature during shipping and at the testing facility. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Storage/Transport Temperature: Refrigerate or freeze and protect from light.
Causes for Rejection : Anticoagulants other than EDTA; specimen not protected from light
Stability : After separation from cells: Room Temperature: 3 days; Refrigerated: 1 week; Frozen: 1 week
LabCorp Laboratory Corporation of America