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PARTIAL THROMBOPLASTIN TIME

Test Name  PARTIAL THROMBOPLASTIN TIME 
Mnemonic  APTT 
Lab Order Code   
CPT   85730 
Department   
Container  BLUE 5 ML 5.0 
Alternative Container   
Handling  One blue top which must be 90% full. Samples with shortdraw or hemolysis will be rejected. Samples will be accepted if received in the lab at room temperature within 4 hours, 2 hours if patient is on Heparin Therapy. If time will exceed this, sample must be centrifuged and the plasma frozen. PROCEDURE: Routine daily turnaround time is 1-4 hours. Stat procedures available 24 houras a day.Emergency or stat results are available within 30 minutes unless special additional verification procedures are required. Ordering physician will be notified if turnaround time is exceeded. REFERENCE RANGE: 25-35 seconds THERAPEUTIC RANGE: 60-104 seconds 
Preferred Volume   
Minimum Volume   
Stability   
Reject Criteria   
Component   
Methodology   
Units  sec 
Reference Range    
Neonate Reference Range   
Required Information  qt-Is this patient on Heparin? qt-Heparin Amount/Time (Continuous vs Bolus): 
Performed   
Reported   Routine 4 hr, STAT 1hr 
Note   
LOINC    
Cross References   
Referred Lab   
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