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Mixing Study, PT, Plasma
Test CodeMXPT
Alias/See Also
Inhibitor Screen, Prolonged PT Evaluation, Correction Studies
CPT Codes
85611
Preferred Specimen
2 tubes, 1.8 mL Buff. Na Citrate, 3.2% (blue top tube)
Minimum Volume
2 mL Plasma
Instructions
The tube must be filled to at least 90% of the proper level. Tube cannot be overfilled.
The coagulation tube (blue top) should be the second drawn tube following the RED top tube for chemistries. It should aslo be drawn before the EDTA or heparin tubes.
The coagulation tube (blue top) should be the second drawn tube following the RED top tube for chemistries. It should aslo be drawn before the EDTA or heparin tubes.
Specimen Stability
Blue Top:
Room temperature: 24 hours
Platelet-poor plasma:
Frozen (-20 C): 2 weeks
Refrigerated: Unacceptable
Room temperature: 24 hours
Platelet-poor plasma:
Frozen (-20 C): 2 weeks
Refrigerated: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Overfilled or under filled tubes should be discarded and redrawn
Reference Range
"Test: MIXING STUDY,PT,PLASMA
Male/Female All Ages:
Normal:
Positive (Reported as CORRECTS, NO CORR, SEE TEXT)
"
Male/Female All Ages:
Normal:
Positive (Reported as CORRECTS, NO CORR, SEE TEXT)
"
Performing Laboratory
Little Company of Mary Hospital
2800 W. 95th St.
Evergreen Park, IL 60805
