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Cortisol (Urine)
(a.k.a Urine Free Cortisol, UFC)
24 Hour Urine (no Preservative)(Phone (82)4712 to order)
Test Code: COX
Tube type: Plain 24hr Urine
Special instructions
None
Sent away
to Bristol Royal Infirmary
Reference range
Cortisol Excretion: <120
Units
nmol/24h
Turnaround Time
14
days
Department: Biochemistry
Clinical Application
Used to investigate possible Cushing’s syndrome/disease. It is a useful initial sensitive, but non-specific, screen. Alternatively, an overnight dexamethasone suppression test may be used for the investigation of Cushing’s.
Cushing’s syndrome is a rare endocrine disorder arising from glucocorticoid excess. Cushing’s syndrome may be caused by excessive, exogenous cortisol i.e. medications such as prednisone, or endogenous cortisol production by the adrenals or ectopic ACTH production. Cushing’s disease refers to Cushing’s which is caused by an ACTH secreting tumour of the pituitary gland.
Webpage updated: September 2024.
Links:
» Patient Instructions for 24h Urine Cortisol Collection
