Vitamin B2 VITB2

Synonyms

Riboflavin

Allscripts (AEHR) Order Name

Vitamin B2

Sunrise Clinical Manager (SCM) Order Name

Vitamin B2

Clinical Info

Riboflavin deficiency is known as pellagra, usually found in those who do not consume a diet rich in organ meats, leafy greens, and whole grains. It is seen in elderly, alcoholics, those with chronic liver disease, and those on total parenteral nutrition. Deficiency may be associated with severe lactic acidosis, especially in HIV patients on triple antibiotics. It also functions as an antioxidant. Riboflavin adsorption is decreased in hyperthyroidism.

Specimen Type

Blood

Container

Lavender Top Tube

Collection Instructions

Container/Tube: Lavender Top Tube
Specimen Type: Whole blood EDTA 0. 5 mL whole blood (0.2 mL min)
Transport Temperature: Frozen
Stability: 1 Day Refrigerated
14 Days Frozen


Collection Instructions:
1. Fasting-overnight (12-14 hours) (infants-draw prior to next feeding).
2. Transfer whole blood to a plastic amber transport tube
3. Send specimen protected from light.
Collection
The blood is to be collected by venipuncture into a lavender-top tube containing EDTA and mixed immediately by gentle inversion at least six times to ensure adequate mixing. Do not separate. Transfer whole blood to a labeled amber plastic transport tube with amber stopper and freeze.
If amber tubes are unavailable, cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient's name directly on the container and the outside of the aluminum foil. Secure with tape.

Transport Instructions

Frozen

Specimen Stability

1 Day Refrigerated
14 Days Frozen

Methodology

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

Days Performed

Monday through Friday
 
TAT: 4 - 6 Days

Performing Laboratory

LabCorp of America

CPT

84252

PDM

5902770

Result Interpretation

137-370 µg/L
 
Note: Reference interval reflects flavinadeninedinucleotide (FAD), that accounts for approximately 90% of the total riboflavin in whole blood.

Forms

edit