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ACTIVATED PARTIAL THROMBOPLASTIN TIME
MessageHEMATOLOGY/COAG WRJ
Test Code
APTT
Alias/See Also
PTT
Preferred Specimen
PLASMA
Minimum Volume
2.7mLs
Instructions
DRAW 1 NA CITRATE(LIGHT BLUE) TUBE, SEND TO THE LAB AT ROOM TEMPERTURE, SPECIMENS FROM HEPARINIZED LINE MUST BE PURGED WITH 15 mL's of BLOOD. TUBE MUST BE ADEQUATELY (AT LEAST 90%) FILLED, MIXED BY GENTLE INVERSION, NO HEMOLYSIS AND DELIVERED IMMEDIATELY TO LAB. Test must be run within 4 hrs of collection.
CBOC can not draw if sample receiving > 4 hrs.
CBOC can not draw if sample receiving > 4 hrs.
Transport Container
ORIGINAL TUBE
Transport Temperature
ROOM TEMPERATURE
Specimen Stability
4HRS from collection
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
HEMOLYZED OR SHORT DRAW. Sample > 4hrs after collection.
Performing Laboratory
WHITE RIVER JUNCTION VT VA HEMATOLOGY/COAG 802-295-9363 EXT: 5521, 5523
