Test Name: VITAMIN B5
Test Code: 2193853
Alias:
LAB11625
CPT Code(s):
84591  
Preferred Specimen:

1 mL serum collected in a red-top tube (no gel) - protected from light

Container:
Red plain (no gel)
Alternate Container:
EDTA (lavender-top) tube protected from light or sodium heparin (green-top) tube protected from light
Minimum Volume:
0.5 mL
Collection Instructions:

Allow red top tube specimen to completely clot. Centrifuge for 15 minutes. Transfer the serum (or plasma if collecting in acceptable alternate collection container) into a properly labeled amber transport tube. If an amber aliquot tube is unavailable, completely cover the transfer tube in tinfoil to protect the specimen from light.

Freeze immediately.

*Specimen must be light protected*

Transport Temperature:
Frozen
Stability:

Room temperature: Unacceptable

Refrigerated: Unacceptable

Frozen: 30 days

Rejection Criteria:

Received room temperature; Serum Separator Tube (SST); Specimen not protected from light

Schedule:

Set up: Mon, Wed, Fri; Report available: 4-7 days

Method:
Chromatography / Mass Spectrometry 
Performing Lab:
Quest Diagnostics - Valencia #91030 > Quest Chantilly
Clinical Significance:

Vitamin B5 (Pantothenic Acid) is a component of coenzyme a and phosphopantetheine both of which are involved in fatty acid metabolism.  It is essential to almost all forms of life and is widely distributed in food.

Use:

Updated: 08/15/2025

Reference Ranges:
<275 ng/mL

Health Lab Test Code Build Information

The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.

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