Test ID: Z0595
CPT code: 84588
Specimen Type: EDTA
Frequency: Setup: Wed; analytic time 3 days
Instructions: Patient to fast and thirst 6 hours. 2.0mL platelet poor plasma from
lavender tube, frozen in plastic vial. Min 1.2mL.
Text: Useful For: Diagnosis and characterization of diabetes insipidus;
Diagnosis of psychogenic water intoxication; As an adjunct in the
diagnosis of syndrome of inappropriate secretion of antidiuretic hormone secretion (SIADH), including ectopic AVP production.
Methodology: Radioimmunoassay (RIA)