APTT
Alternate Names
Activated Partial Thromboplastin Time, Partial Thromboplastin time, PTT
SoftLab Order Code
APTT
Epic Order Name
APTT
Epic Order ID
LAB325
Laboratory
All Sites
Sample Type
Plasma
Collection Container
Blue Top (Sodium Citrate - Light blue)
Collecting Volume
One full light blue top tube
Minimum Collecting Volume
One full light blue top tube- (Special low volume collection tubes are available for Neonatal patients if blood volume collection is limited by clinical condition. Contact the laboratory to request a collection tube.)
Storage or Stability
Ambient if testing will be performed quickly. Frozen if testing will not be performed within four hours of collection.
Causes for Rejection
Tube not filled to capacity, Clotted
Instructions
Aliquot and freeze plasma if testing cannot be completed within four hours of collection
CPT Codes
85730