BIOTIN (VITAMIN B7)

Specimen Required
Patient Preparation: After consulting their physician, patients taking antibiotics should stop medication 5-6 days prior to specimen collection. Draw blood in a SST. Centrifuge, separate and send 2.0 mL serum (1.0 mL minimum) frozen (within 30 minutes) in an amber screw-capped plastic vial. PROTECT FROM LIGHT.

Rejection Criteria
Samples not protected from light, gross hemolysis, lipemia, samples other than serum.

Methodology
Bioassay

Stability
Room Temperature: Unacceptable; Refrigerated: Unacceptable; Frozen: 14 days

Reference Range
< 12 years: 57.0 - 2460.2 pg/mL
>= 12 years: 221.0 - 3004.0 pg/mL

Performed
Tuesday

Turnaround Time10 - 25 days
Test CodeVB7
CPT-4 Code (s)
84591
LOINC Codes
Not available at this time

Warde
Medical
Laboratory