The University of Iowa (UIHC)
Department of Pathology
LABORATORY SERVICES HANDBOOK

Warfarin
Order Code: WARF
Epic Lab Code: LAB4274
Order Form: A-1a Miscellaneous Request or Epic Req 		  Commercial "Mail-out" Laboratory
6240 RCP
356-3527 
Specimen:
 
Plasma
Collection Medium:
Green top tube (Na Heparin) 


Alternate
Collection Media:


Lavender top tube (EDTA)


Minimum:


Preferred minimum: 3 mL plasma from green top (NA Heparin) tube
Absolute Minimum:  1.1 mL plasma from green top (NA Heparin) tube


Rejection Criteria:


Gel separator tubes


Analytic Time:


1 week


Reference Range:


Therapeutic concentration:  2.0-5.0 ug/mL
Toxic concentration: > or =10.0 ug/mL


Methodology:


High-Pressure Liquid Chromatography (HPLC)


CPT Code:


82486


 


See Additional Information:
Commercial (Mailout) Critical Lab Values




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Updated: 05/31/2007

Note: The information contained in this handbook is  
            for use by personnel of University of Iowa Health Care. 
            No other use is implied or intended.