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ILH Laboratory specimen collection and test information
Blue Top
Partial Thromboplastin Time- Activated
Properly filled blue top
Alternative name(s)

Lab section Core Lab    
When performed 24 hours / 7 days    
When reported
24 hours / 7 days    
   
Sunquest code:
PTT
EPIC Code:
APTT
   
Important notes: Should be drawn by 2 syringe or 2 tube technique for difficult collections. Blue top must be properly filled. Prothrombin time may be ordered on same patient. Specimen good for 4 hours.
Rejection criteria: Clotted specimen and improperly filled tubes.
Transportation notes:
Specimen preparation:

MCL Web resources Specimen packaging pages Reference lab 

ILH Web Resources
Last revised 09/11/2013