Pathology tests database

Sample and container requirements

Minimum volume required

Special requirements

Patient preparation

Sample viability

Turnaround time

Reference range

Clinical guidance

Test not routinely available. Arginine vasopressin (ADH) measurement has largely been superseded by copeptin assays, which provide a more stable and reliable surrogate marker for endogenous vasopressin secretion. Copeptin is increasingly used in the investigation of diabetes insipidus and primary polydipsia in specialist endocrine centres.

Notes