Growth Hormone
Investigation : Growth Hormone
Specimen type : Serum
Spec container : Serum Gel 
Volume required : 5 ml
Turnaround : <7 days

GH results from 1st November 2009 are reported in mass units (ug/L.)
Results are 3 times lower than previously reported (mU/L.)

Growth hormone is increased by stress and exercise. In general a single Growth Hormone estimation provides little diagnostic information and dynamic (suppression or stimulation) tests are much more helpful.

Appropriate cut-off after GH stimulation tests (I.E. ITT or Glucagon) are as follows:
Severe GH deficiency <3ug/L, relative GH deficiency <6.6ug/L

Appropriate cut-off after a GTT suppression test are as follows:
excludes acromegaly <0.15ug/L; for cure of acromegaly suppression to <0.33ug/L.

Additional information on growth hormone and its clinical use can be found here: growth hormone.


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