Test Name
ANTIDIURETIC HORMONE
Aliases
ARGININE VASOPRESSIN, VASOPRESSIN
Abbreviations
ADH, AVP
Test Classification
INDIVIDUAL
Department
SPECIAL CHEMISTRY
Sub Department
-
TAT Category
ELAPSED (CONTINUOUS) TIME
Estimated TAT
8
TAT Units
DAYS
Test Requirements
Patient preparation
FASTING IS REQUIRED.
Sample type
EDTA PLASMA (FASTING SAMPLE IN A PRE-CHILLED EDTA TUBE, CENTRIFUGE IMMEDIATELY & FREEZE SPECIMEN IN PLASTIC TUBE).
Container/ preservative
PURPLE TOP
Sample volume
2ML EDTA PLASMA
Rejection criteria
LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; SAMPLES WHICH ARE NOT FROZEN.
Other Instructions
PROMPTLY SEPARATE EDTA PLASMA AND IMMEDIATELY FREEZE. LABEL OF SEPARATION VIAL MUST INCLUDE SAMPLE TYPE.
Clinical Utility
EVALUATION OF DIABETES INSIPIDUS (CENTRAL VS. NEPHROGENIC) & SYNDROME OF INAPPROPRIATE ADH (SIADH).
Test Limitations/ Confounders
RELEASED IN A PULSATILE MANNER. TEMPERATURE SENSITIVE ANALYTE. IMMUNOASSAY INTERFERENCE CAN GIVE RISE TO SPURIOUS RESULTS. SUCH INTERFERENCE CAN ARISE FROM PRESENCE OF HETEROPHILE ANTIBODIES, ANTI-ANIMAL ANTIBODIES, AUTOANTIBODIES, PARAPROTEINS, BIOTIN ETC. RESULTS SHOULD ALWAYS BE CORRELATED WITH CLINICAL FINDINGS.
Last Review
26th Feb 2026