Albany Medical Center
Home / Caring / Educating / Find a Doctor / News / Give Now / Careers / About / Calendar / Directions / Contact
Maps & Directions
Search for a Test
Select a Test

partial thromboplastin time, mixing study
Synonyms: PTT Mixing Study 
Computer Code: MPTT
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 PTT is due to a factor deficiency or an inhibitor.  
Lab Code: HEM 
Requisition: C/H
Test Frequency: Daily 
Routine TAT: 4 hr 
Stat TAT: contact lab 
CPT Code(s): 856730x2, 85732 
LCD or NCD: (NCD) 
Methodology Used: 55
See Addendum XVII

Albany Medical Center
43 New Scotland Avenue
Albany, NY, 12208
Date: 10/04/2015
Time: 11:21:14 (24hr)