Coumadin

Specimen Requirements

3.0 mL Serum from a Red Top Tube in a Plastic Vial

Alternate Specimen

3.0 mL Plasma from a Lavender Top Tube - EDTA in a Plastic Vial
or
3.0 mL Plasma from a Green Top Tube - Li Heparin in a Plastic Vial
or
3.0 mL Plasma from a Green Top Tube - Na Heparin in a Plastic Vial
or 
3.0 mL Serum from a Navy Blue Top Tube - No Additive in a Plastic Vial
or
3.0 mL Plasma from a Blue Top Tube - 3.2% Na Citrate in a Plastic Vial

TransportAndStorage

1 week Refrigerated

Collection Instructions

Centrifuge and separate from cells immediately

Minimum Volume

1.2 mL

Neonatal Volumne

Reference Range:

1.0 - 10.0 mcg/mL 

Detection Limit: 0.1 mcg/mL

Critical Ranges:

> 10.0 mcg/mL

Methodology:

• High Performance Liquid Chromatography (HPLC)

CDM

01422848

CPT Coding

82491