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Antidiuretic Hormone

Referred out for testing

Source Blood
Mnemonic ADIURH
Specimen Requirements

Collections performed at acute care (RRL) sites and all PSCs.
Test cannot be collected by Mobile Collection Service (MCS).

2 x 4 mL lavender top EDTA tubes
Minimum 3.0 mL plasma

Keep tubes cold (immerse in ice water) before collecting and immediately after collection.

Specimen Handling

Record collection time on requisition.

Centrifuge at 4ºC + 2ºC and freeze two aliquots of plasma immediately (use pre-chilled tubes for aliquotting), then transport to DSC. Send in a separate bag with a photocopy of the requisition.

DSC:
Ensure frozen specimens do not thaw.

Additional Information To measure basal ADH, collect after 12 hour fast with patient recumbent for 1 hour prior to collection.
Testing Location In-Common Laboratories
Testing Frequency
Alternate Name(s) ADH, Arginine Vasopressin
Reference Interval