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Biotin (Vitamin B7)

Test Codes

EPIC: LAB3288, Beaker: XVITB7, MAYO: FBIOT

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube. 
Also acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to an amber plastic transport tube to protect from light and freeze (-20°C/-4°F or below).

Preparation for Courier Transport

Transport: 2.0 mL serum, protected from light, frozen (-20°C/-4°F or below). (Minimum: 1.0 mL)

Rejection Criteria

• Specimens not collected and processed as indicated.
• Specimens are grossly hemolyzed.
• Specimens are grossly lipemic.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to an amber plastic transport tube to protect from light and freeze (-20°C/-4°F or below).

Transport: 2.0 mL serum, frozen (-20°C/-4°F or below). (Minimum: 1.0 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 14 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Medical Laboratories, Rochester, MN and forwarded to BioAgilytix Diagnostics.

Performed

Varies, 2 days per week.
Results available in 4-12 days.

Reference Range

By report.

Test Methodology

Microbiological Assay.

CPT Codes

84591

Contacts

Last Updated

10/8/2024