Printable Test Catalog - OU Medicine

CPT: 82608
[VITB1B] Whole Blood Vitamin B1 Level
SPECIMEN REQUIRED: Frozen whole blood
TUBE OR CONTAINER: Lavender (EDTA)
SPECIAL HANDLING: Protect from light
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 10 days
REFERENCE RANGE: 66.5 - 200.0 nmol/L
OTHER NAMES: Thiamine
METHODOLOGY: High-pressure liquid chromatography (HPLC) with
fluorescence detection
CLINICAL USE: Important cofactor for the transketolation
reactions of the pentose phosphate cycle, which
provides pentose phosphate for nucleotide
synthesis and for the reduced NADP required for
various synthetic pathways
CPT: 84425
[VITB2] Vitamin B2 Level
SPECIMEN REQUIRED: Frozen whole blood
TUBE OR CONTAINER: Lavender (EDTA)
SPECIAL HANDLING: Freeze immediately and protect from light
SPECIMEN VOLUME: 1.5 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
REFERENCE RANGE: 137-370 g/L
OTHER NAMES: Riboflavin
METHODOLOGY: High-pressure liquid chromatography (HPLC) with
fluorescence detector
CLINICAL USE: Detect riboflavin deficiency
CPT: 84252
[VITB3] Vitamin B3 (Niacin)
SPECIMEN REQUIRED: Refrigerted serum plasma
TUBE OR CONTAINER: Gold, Red or Lavender (EDTA)
SPECIAL HANDLING: Centrifuge and separate within 45 minutes of
collection. Sample must be light protected.
SPECIMEN VOLUME: 1 mL
MINIMUM VOLUME: 0.5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 4-9 days
REFERENCE RANGE: 0.0-0.7 ng/mL
OTHER NAMES: Niacin; Nicotinic acid
METHODOLOGY: Liquid chromatography/tandem mass spectrometry
(LC/MS-MS)
CPT: 84591