Test directory: Vitamin A

Ordering Code 329
Test Name Vitamin A
Alias Retinol
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red)
Optimum Volume 2 mL
Collection Instructions Foil specimen to protect from light
Overnight fasting is required.
Handling Instructions Foil specimen to protect from light
Specimen is forwarded to another lab for testing; do not share with other tests.
Transport Requirements Oahu: Ambient
Airline: Frozen
Specimen Stability Ambient: 24 Hours
Refrigerated: 1 Week
Frozen: 28 Days
Rejection Criteria Grossly hemolyzed, Not protected from light, Plasma,
Received ambient at reference laboratory, Grossly lipemic
Avail. Stat NO
Analytic Time Up to 6 Days
Methodology High Performance Liquid Chromatography (HPLC)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Vitamin A ALL See report.