This test is NOT indicated for diagnosing patients with biotinidase deficiency or as a follow up of an abnormal newborn screen for biotinidase deficiency. Use in combination with other tests to confirm or monitor patients with biotinidase deficiency.
Methodology:
Bioassay
Performed:
Varies
Reported:
4-18 days
Specimen Required:
Collect: Plain red or serum separator tube.
Specimen Preparation: Allow specimen to clot for 30 minutes and separate from cells. Transfer 2 mL serum to an ARUP Amber Transport Tube and freeze immediately. Protect from light. (Min: 1 mL)
Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Unacceptable Conditions: Grossly hemolyzed specimens. Thawed specimens or specimens not protected from light.
Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month