3505      Partial Thromboplastin Time
Specimen:
  Collect: One 4 mL Blue Top (Na Citrate)  
  Submit: 1 mL (Min:0.5 mL) Plasma. Submit Frozen. Submit in a Standard Transport Tube.  
  Rejection Criteria: Clotted Specimen
Collection tube not properly filled
Grossly Hemolyzed Samples 
  Stability: Ambient: 4 Hour(s); Refrigerated: 4 Hour(s); Frozen: 2 Week(s); Incubated: Unacceptable 
Methodology: Photo Optical Clot Detection 
Performed: Mon-Fri 
Reported: 1-3 Day(s) 
CPT Codes:
85730 - PTT
Interpretive Data:
General Reference Range : 23.9-43.5 sec