Growth Hormone | KK Women's and Children's Hospital

Specimen Container	Gel separator tube (Adult) Microtube (Paeds)
Specimen Requirement	Plain Blood Adult: 5 mL Paediatric: 1.3 mL Invert blood 5 times after blood collection ensures the clot-activating factors is well mixed with the blood. This will ensure results are reliable.
Specimen Storage/Transport	Instructions for external hospitals/laboratories: Serum should be separated from blood cells immediately. GH is stable for 8 hours at 2 to 8 degrees Celsius, or for 2 months at -20 degrees Celsius.
Orderable as Urgent?	No
Turn Around Time	1 - 4 days
Reference Value(s)	Adult (Male): <= 3.0 ug/L Adult (Female): <= 8.0 ug/L
Testing Laboratory Location	KKH
Laboratory	Clinical Chemistry
Contact Number	6394 1383
Day and Time Performed	Monday and Thursday
Orderable on CPOE?	No
Downtime Form	Clinical Chemistry - Form A
Additional Information	Immunoassay measurements can be subject to interference from cross-reaching substances in the patient's blood. If the result does not agree with the clinical picture, please contact the laboratory for further action.

Change History Notes

Last Updated - 27 May 2025