Alberta Precision Laboratories

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Organization:

Alberta Precision Laboratories

Message Alert:

PLEASE NOTE: This Test Directory is in an interim state and due to changes pertaining to the DynaLIFE transition, performing site for routing has not been updated. Please refer to Laboratory Information System for appropriate routing.

Test Name/Synonym:

Vitamin A (Synonym: retinol, VITA)

Collection Alert:

Protect from light by wrapping tubes in foil immediately after collection.

Shipping and Handling Alert:

Specimen MUST be centrifuged and serum MUST be aliquoted and protected from light. See processing requirements below.

LABID (Connect Care):

LAB580

Test Code:

VITA

Specimen Type:

Blood

Primary Container:

Gold SST

Alternate Containers:

Edmonton: MINT LIHEP

Minimum Collection Volume:

0.5 mL serum

Specimen Collection Requirements:

Minimum 10 hour fast is recommended. Do not consume alcohol, or nutritional supplements containing Vitamin A within 24 hours of collection.
For newborns, specimen is collected just before next feed.

Vitamins A and E can be performed on the same specimen

Test Resources:

	Patient Instructions: Fasting Tests
	General Laboratory Requisition – 21302 write test name under “Additional Tests"
	Calgary Zone: Microcollection Minimum Whole Blood Volumes

Stability and Storage:

Refrigerated and protected from light: 5 days
Frozen: 1 month

Processing:

Centrifuge and aliquot serum. Protect aliquot tube from light by using an amber tube (preferred) or by wrapping tube in foil.

Transportation:

Transport sample frozen

Testing Schedule:

Calgary: Weekly
Edmonton: Batched - performed within 3 weeks of receipt

Reference Interval:

Age	umol/L
0 up to 6 months	0.7 - 1.5
6 months up to 12 years	1.0 - 2.5
12 years up to unspecified	1.5 - 3.5

Testing Area:

TDM/Toxicology

Performing Site:

Calgary: Diagnostic and Scientific Centre
Edmonton: University of Alberta Hospital

Additional Test Information:

This assay does not measure other vitamin A metabolites such as retinaldehyde and retinoic acid.

Last Updated On:

Monday, May 8, 2023