Ordering Recommendation

Aids in diagnosis of growth hormone excess or deficiency disorders.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Patient must be fasting and at complete rest for 30 minutes before blood collection


Plasma separator tube or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.4 mL)

Storage/Transport Temperature

Frozen. Also acceptable: Refrigerated.

Unacceptable Conditions

Tissue or urine. Grossly hemolyzed or lipemic specimens.


After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 2 months


Quantitative Chemiluminescent Immunoassay




1-2 days

Reference Interval

Effective May 20, 2013

Age Male Female
0-6 years 0.10-6.20 ng/mL 0.10-6.20 ng/mL
7-17 years 0.05-11.00 ng/mL 0.05-17.30 ng/mL
18 years and older 0.05-3.00 ng/mL 0.05-8.00 ng/mL

Interpretive Data

Compliance Category



This Growth Hormone assay is now standardized to the Recombinant Second International Standard (IS): 98/574. Growth hormone results read approximately 25 percent lower than with the previous standards (FirstIS: 80/505). Reference ranges have also been modified according to the assay manufacturer.

Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0070080 Growth Hormone 2963-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • GH
  • GH testing
  • GHRH
  • Growth Hormone Stimulation
  • growth hormone, Serum
  • hGH
  • Human Growth Hormone
  • Somatotrophic Hormone
  • Somatotropin
Growth Hormone