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prothrombin time mixing study
Synonyms: PT Mixing Study 
Computer Code: MPT
Specimen Collection: Three 2.7 mL blue top tubes. Transport to lab within 3 hours. 
Minimum Volume: two 2.7 mL 
Handling Instructions for Offsite Areas: Maintain at room temperature. If specimen cannot be transported within 2 hours, centrifuge at 3,000 rpm for 20 minutes. Using a plastic pipette, transfer plasma to plastic tube and freeze plasma. 
Reference Values: Test to differentiate whether an abnormal PT is due to a factor deficiency or an inhibitor.  
Lab Code: HEM 
Requisition: C/H
Test Frequency: Daily 
Routine TAT: NA 
Stat TAT: contact lab 
CPT Code(s): 85610x2, 85611 
LCD or NCD: (NCD)  
Methodology Used: 55
See Addendum XVII

Albany Medical Center
43 New Scotland Avenue
Albany, NY, 12208
Date: 10/20/2014
Time: 04:13:03 (24hr)