AsseyMethod: Chemiluminescence
Abbrevation: ACTH
Sector: Hormone 1
SampleType: PE
S.Vol: 0.5
Transport: 2 hrs. at 2-8˚c,-20˚c
Storage: 6 hours at 2-8˚c for longer time at -20˚c
Test Name: Adrenocorticotropic Hormone
Normal Range: Up to 49
To diagnose adrenal and pituitary diseases such as Cushing's syndrome, Cushing’s disease, Addison’s disease, adrenal tumours, and pituitary tumours; usually done as a diagnostic test once an abnormal cortisol level is detected
If your doctor has discovered that you have abnormal cortisol levels. ACTH will help to sort out the possible cause of the abnormal cortisol result.
A blood sample taken from a vein in your arm
The sample is unstable so needs to be collected in a hospital that has laboratory facilities to process it immediately. It cannot usually be collected at a GP surgery. Typically it is taken in the morning, about 9 am.
Adrenocorticotropic hormone (ACTH) is a hormone produced in the pituitary gland (located below the brain within the skull) to stimulate secretion of the hormone cortisol by the adrenal glands (small organs located at the top of each kidney). Stress can stimulate the release of ACTH. Cortisol is important for regulating glucose, protein, and lipid metabolism; suppressing the immune response; and maintaining blood pressure. Normally, ACTH concentration increases when cortisol is low and falls when cortisol is high.
How is the sample collected for testing?
A blood sample is taken by needle from a vein in the arm.
Is any test preparation needed to ensure the quality of the sample?
The sample is unstable so needs to be collected in a hospital that has laboratory facilities to process it immediately. It cannot usually be collected at a GP surgery. Typically it is taken in the morning, about 9 am.