Vitamin B7

Alphabetical Test listing

Vitamin B7-994

Test name:

Vitamin B7

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Biotin

Useful for:

Measurement of vitamin B7 level

Specimen type:

Serum

Collection container:

Red serum vial/tube - 5 mL

Volume:

1.0 mL

Minimum volume:

0.5 mL
Submission of the minimum volume does not allow for repeat testing

Processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Alternate specimen type:

EDTA plasma

Alternate collection container:

Lavender (EDTA), 4mL

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

Alternate processing instructions:

Spin within two (2) hours of sample collection
Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as EDTA plasma
Freeze

Alternate transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Transport and stability:

Frozen (preferred) - 14 days

Freeze/thaw cycles - stable x 3

Refrigerated - 3 days

Ambient - 3 days

Reason for rejection:

Gel-barrier tube

Performing lab:

LabCorp Burlington (070097): R-NX

Days set up:

Mo - Fr

TAT:

7 days

Method:

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Reference ranges:

0.05 - 0.83 ng/mL

CPT codes:

84591

LOINC code:

Result 1980-2

Date created:

05/22/2019

Revised date:

04/06/2022

Review date:

03/18/2024