Days Set Up
Analytic Time

8 hours

MiChart Code
Growth Hormone
Soft Order Code

Test Updated:


Human Growth Hormone
Human Growth Hormone (HGH)
Somatotropic Hormone
Somatotropic Hormone (STH)

Looking to order a test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

Immunometric Chemiluminescence

Test Usage

Diagnosis of hypopituitarism and of acromegaly

Reference Range

MALES: 0 - 3 ng/mL; FEMALES: 0 - 5 ng/mL; POST-STIMULATION: Pediatric (<18 yrs): >7 ng/mL; Adult (>18 yrs): >5 ng/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Collect specimen in SST tube. Transport specimen to laboratory, or centrifuge, aliquot serum into a plastic vial and freeze within 1 hour of collection.

Collection Offsite

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and freeze within 1 hour of collection.

Yellow Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.5 mL serum

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

Explore our helpful billing resources:

Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.