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partial thromboplastin time
Synonyms: PTT 
Computer Code: PTT
Specimen Collection: 2.7 mL blood (blue top tube). 
Minimum Volume: 1.8 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: 24.0-32.0 seconds  
Lab Code: HEM 
Requisition: C/H
Test Frequency: Daily 
Routine TAT: NA 
Stat TAT: 60 min 
CPT Code(s): 85730 
LCD or NCD: (NCD) http://www.cms.hhs.gov/mcd/index_section.asp?ncd_sections=40 
Methodology Used: 55
See Addendum XVII

Albany Medical Center
43 New Scotland Avenue
Albany, NY, 12208
Date: 10/31/2014
Time: 09:01:48 (24hr)