Preferred Sample Type

Anti Diuretic Hormone (ADH/Vasopressin)

Suitable Specimen Types

  • Li Hep Plasma
5 mL plasma

Specimen Transport

Send sample frozen to referral laboratory

Sample Processing in Laboratory

Send to the laboratory immediately

Sample Preparation

Centrifuge at 4 ºC Separate and freeze sample within half an hour.

Turnaround Time


Sample Stability

-20 ºC

Anti Diuretic Hormone (ADH/Vasopressin)

General Information

ADH is synthesised by the hypothalamus and transported down the pituitary stalk to be stored in the posterior pituitary, which releases ADH in response to physiologic stimulation. ADH promotes water retention by increasing the permeability of nephrons

Diabetes insipidus and SIADH can be diagnosed using serum and urine electrolytes and osmolality, and measurement of ADH is not required.

This test is not routinely available and requests should be discussed with the duty biochemist (bleep 2506)

Patient Preparation

Results of U/E and osmolality on blood and urine required before request ADH test.


ASSAY NOT ROUTINELY AVAILABLE. Requests should be referred to the Duty Biochemist (Bleep 2506) before a specimen is taken.

Reference Range

Provided by Reference Laboratory


  • EQA Status:

    Not available

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HTA licence number is 12366

Protection of Personal Information – Laboratory Medicine comply with the Trust Data Protection Policy and have procedures in place to allow the Directorate and it’s employees to comply with the Data Protection Act 1998 and associated best practice and guidance.

The Trust Laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital were awarded UKAS (United Kingdom Accreditation Service) accreditation to the internationally recognised ISO 15189 standard in May 2015. For a list of accredited tests and other information please visit the test database
Tests not appearing on this scope are either under consideration or in the process of accreditation and so currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235