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Growth Hormone (hGH)

Test Name:Growth Hormone (hGH)
Epic Order Code:LAB525  
CPT Code:83003  
Specimen(s) Type:Serum, 1.0 mL  
Acceptable Container(s):Tops are gold and red.
Testing Schedule:Monday-Saturday
Turn Around Time:STAT: NA  
 Routine: 2-4 days
Collection Information:Fasting specimen is preferred. Obtain by standard collection procedures.
Transport Information:Deliver to lab immediately. All specimens must be signed into the laboratory.
Reference Clients:If unable to deliver to the lab within 1 hour, centrifuge the specimen and remove serum from the red cells. Store and transport at 2-8° C up to 3 days. If longer storage is required, store and transport at -20° C up to 2 months.
Causes for Rejection:Improperly labeled, incorrect container, contaminated, insufficient volume, incorrect/delay in transport.
Reference Range:Males: 0.01-0.97 ng/mL
 Females: 0.01-3.61 ng/mL
Additional Information:Because hGH levels in normal and diseased populations overlap, hGH suppression and stimulation tests are needed to evaluate conditions of hGH excess and deficiency; random hGH levels are inadequate.