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Test Code LAB1091 Riboflavin (Vitamin B2), Plasma

Additional Codes

VITB2

Secondary ID

42363

Useful For

Evaluation of individuals who present the signs of ariboflavinosis

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Portions of this test are covered by patents held by Quest Diagnostics

Specimen Type

Plasma Heparin


Shipping Instructions


Ship specimen in amber vial to protect from light.



Specimen Required


Patient Preparation: Fasting-overnight (12-14 hours) (infants-collect specimen prior to next feeding)

Supplies: Amber Frosted Tube, 5 mL (T915)

Collection Container/Tube:

Preferred: Green top (sodium or lithium heparin)

Acceptable: Light-green top (sodium or lithium heparin plasma gel)

Submission Container/Tube: Amber vial

Specimen Volume: 2 mL

Collection Instructions: Centrifuge within 2 hours of collection and aliquot plasma into amber vial.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Heparin Refrigerated (preferred) 28 days LIGHT PROTECTED
  Frozen  28 days LIGHT PROTECTED
  Ambient  72 hours LIGHT PROTECTED
Medical University of South Carolina Note:

On-campus collections: Tube to 99 or deliver to University Extension Hospital Room EH318 
Submission Container/Tube: Amber vial, Refrigerated
.
Off-campus collections: Protect from light
Centrifuge within 2 hours of collection and aliquot to amber vial.
Specimen to be stored/transported Refrigerated

Reject Due To

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK

Reference Values

1-19 mcg/L

Interpretation

Low concentrations in the blood plasma are indicative of nutritional deficiency. Concentrations below 1 mcg/L are considered significantly diminished. Marginally low levels probably represent nutritional deficiency that should be corrected.

Method Description

Riboflavin (vitamin B2) is extracted from plasma heparin specimens with internal standard and then analyzed by liquid chromatography tandem mass spectrometry.(Unpublished Mayo method)

Day(s) Performed

Monday, Wednesday, Friday

Report Available

2 to 5 days

Specimen Retention Time

2 weeks

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

84252

LOINC Code Information

Test ID Test Order Name Order LOINC Value
VITB2 Riboflavin (Vitamin B2), P 2924-9

 

Result ID Test Result Name Result LOINC Value
61637 Riboflavin (Vitamin B2), P 2924-9