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Test ID: AVP    
Arginine Vasopressin, Plasma

Specimen Type Describes the specimen type needed for testing

Plasma EDTA

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Specimen Type: Platelet-poor plasma

Collection Container/Tube: Lavender top (EDTA) iced tube

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions:

1. Have patient fast and thirst for 6 hours (no liquids, including water, are allowed).

2. Process 5 mL of EDTA whole blood as follows:

a. Spin down in a refrigerated centrifuge at approximately 1,000 x G (2,000 rpm for a 20-cm radius centrifuge) for 10 minutes.

b. Remove plasma, carefully avoiding the platelet/buffy coat.

Additional Information: This test should not be requested on patients who have recently received radioactive material.

Forms: If not ordering electronically, submit a General Request Form (Supply T239) with the specimen.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

1.15 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross OK

Other

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Plasma EDTAFrozen (preferred)14 days
 Refrigerated 24 hours