A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Vitamin B2 (Riboflavin)

Test Code
VITB2


Quest Code
36399


CPT Codes
84252

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


Patient Preparation
Overnight fasting is required. Avoidance of vitamin supplements for 24 hours prior to collection is preferred.

Minimum Volume
0.5 mL


Other Acceptable Specimens
Frozen plasma collected in: EDTA (lavender-top) tube - protected from light


Instructions
Pour serum or plasma into amber transport tube (preferred) or transport tube wrapped in aluminum foil to protect from light.


Transport Temperature
Frozen


Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tube (SST)


Methodology
Chromatography/Mass Spectrometry

Setup Schedule
A.M.


Reference Range
6.2-39.0 nmol/L


Clinical Significance
Vitamin B2 is involved in metabolism of fats, carbohydrates, and protein. The clinical manifestations of deficiency are non-specific. Clinical manifestations include mucocutaneous lesions of the mouth and skin, corneal vascularization, anemia, and personality changes.


Performing Laboratory
Quest Diagnostics Valencia
Nichols Institute
27027 Tourney Road
Valencia, CA 91355-5386




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.