The Copeptin test is used in the diagnosis of central diabetes insipidus and in the differential diagnosis of central or nephrogenic diabetes insipidus. It is a reliable surrogate marker for arginine vasopressin (AVP)
1.0 mL Frozen Serum from a Red Top Tube in a Plastic Vial
1.0 mL (0.5 mL) Frozen Serum from a SST Gold Top Tube in a Plastic Vial
or
1.0 mL (0.5 mL) Frozen Plasma from a Green Top Tube - Na Heparin in Plastic Vial
or
1.0 mL (0.5 mL) Frozen Plasma from a Lavender Top Tube - EDTA in a Plastic Vial
24 hours Ambient
72 hours Refrigerated
28 days Frozen (transport)
0.5 mL Plasma
0 to 2 Years: Not Established
3 to < 17 Years: 2.4 - 26.0 pmol/L
> or = 18 Years: < or = 13.7 pmol/L
The Copeptin test is used in the diagnosis of central diabetes insipidus and in the differential diagnosis of central or nephrogenic diabetes insipidus. It is a reliable surrogate marker for arginine vasopressin (AVP)
4 to 5 days
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86255