Spectrophotmetry
Serum or Plasma
Stanford Biochemical Genetics
Other Reference Test
Varies
7-9 Days
1.5-4 mL Blood
Red Top (No Additive)
Serum separator tube (SST) or plasma collected in a lithium heparin (green-top) tube (PST) is also acceptable. Physician or NBS Program will provide patient or Outpatient Lab the Stanford Biotinidase Deficiency Confirmatory Test requisition to submit with the specimen to send outs in the main lab.
Frozen-Only
Room Temp: <2 Hours; Refrigerated: Unacceptable; Frozen: ONLY
Room temp >2 Hours
2 mL Serum or Plasma
0.6 mL Serum or Plasma
Separate serum or plasma from cellls ASAP and freeze immdiately. CRITICAL FROZEN. Complete the Standford Biotinidase Deficiency Confirmatory Testing requisition and submit with serum or plasma frozen. Send Monday-Thursday ONLY. No weekend or holiday delivery.
This is ONLY for Biotinidase Follow Up Newborn Screen. Requisition provided by physician. (No charge for this follow up test)
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06-29-20