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:

Human Growth Hormone (Synonym: GH, HGH, Somatotropin)

Clinical Indications:

This test is used in diagnosis of conditions related to growth hormone deficiency and excess in conjunction with results from stimulation or suppression testing.

Ordering Alert:

A random or single fasting GH level is of limited value since secretion of GH is episodic and pulsatile.
Testing for GH deficiency or excess is best done as part of a dynamic test involving specific stimuli.
IGF-1 is the preferred initial test for investigating GH deficiency or excess.

Edmonton Zone: Random GH will ONLY be accepted if the following criteria are met. All other requests will be replaced with IGF-1.
1. Patients with acromegaly being monitored for therapy. This information should be indicated on the requisition or as a Connect Care order comment.
2. Pre-approved endocrinologists.
3. Pediatric patients less than 1 year old.

LABID (Connect Care):

LAB525

Test Code:

CALGARY ZONE	GH SERIAL COLLECTIONS: SERGH
EDMONTON ZONE	HGH
CENTRAL, NORTH, SOUTH ZONES	GH

Primary Container:

Calgary: MINT LIHEP PST
Edmonton: GOLD SST

Alternate Containers:

Calgary: GOLD SST

Minimum Collection Volume:

0.5 mL plasma or serum

Test Resources:

General Laboratory Requisition – 21302 – write test name under “Additional Tests”

Calgary Zone: Microcollection Minimum Whole Blood Volumes

Processing:

All collection sites other than Calgary, Airdrie, Cochrane, and Chestermere: centrifuge, aliquot and freeze.

Transportation:

For testing sent to Calgary	For testing sent to Edmonton
Calgary, Airdrie, Cochrane, and Chestermere collection sites: transport at room temperature Other collection sites and other zones: transport frozen Diagnostic Scientific Centre: Store frozen after receipt	Transport frozen

Testing Schedule:

Calgary: Monday to Friday
Edmonton: Batched - performed within 2 weeks of receipt

Reference Interval:

Calgary	Male: 0 - 3 µg/L Female: 0 - 8 µg/L
Edmonton	Less than 5.1 µg/L

Testing Area:

Biochemistry

Performing Site:

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

Additional Test Information:

This test is performed by Calgary Immunochemistry and Edmonton Special Chemistry

Calgary: Serial collections may be performed.

Last Updated On:

Monday, May 10, 2021