Department: 
Biochemistry
Tube Colour: 
See Copeptin
Pseudonyms: 
ADH, Vasopressin, copeptin
Test Code: 
ADH
Availability: 
No longer available - refer to Copeptin
Collection Requirements: 
see Copeptin
Requires own tube?: 
No
Fee: 
AUD $35 not Medicare rebatable
Reference Range: 
0.0-7.0 pmol/L
Notes: 
Anti-diuretic hormone is no longer available. This has been replaced with Copeptin (aka C- Terminus Pro-Arginine Vasopressin, CT-proAVP), which is the C-terminal glycoprotein moiety of pre-provasopressin and is released in the same amount as AVP and can be used as a surrogate for ADH concentration. Copeptin has a much longer plasma half-life than ADH (days compared to minutes) and has greater stability at room temperature and therefore is less prone to preanalytical errors. As a result, RPAH replaced the ADH assay with the copeptin assay on 1st July 2019.