Laboratory Services

Vitamin A (Retinol)

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Updated Test Information:

Test Description
Vitamin A (Retinol)
Synonym(s)

UOW3334

Test ID
VITAG
General Information

The concentration of vitamin A in serum/plasma is determined by heptane liquid-liquid extraction and liquid chromatography-tandem mass spectrometry. The reportable range is 40-1600 mcg/mL with imprecision between 4.4 to 6.2 %CV.

Container Type

4 mL blood in GOLD SST tube


Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, LIME, RED TOP or LAVENDER TOP tube Pediatric Draw: 1 Full LIME GREEN MICROTAINER

Specimen Type

Serum

Specimen Requirements

0.5 mL plasma/serum

Specimen Collection / Processing Instructions

PST, RST or GOLD SST: centrifuge and refrigerate plasma/serum in original container LAVENDER, or RED top: centrifuge, remove plasma/serum from red cells and refrigerate

Minimum Sample Volume

0.3 mL plasma/serum

Stability

refrigerated, 7 days.

Department (code)

Chemistry, Harborview

Methodology

LCMSMS

Testing Schedule

Tuesday, Thursday

Test Includes

VITA               Vitamin A (Retinol)
VITAM          Vitamin A (Retinol) Method

CPT Code(s)

84590

STAT Orderable (Y/N)

No

Performing Lab

UW

LOINC Code(s)