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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
PT MIXING STUDIES
Test CodePTM
Alias/See Also
- Circulating Anticoagulant
- Prothrombin Time Inhibitor Assay
- PT Correction
CPT Codes
85611
Includes
PT Baseline, PT immediate mix, PT post incubation
Preferred Specimen
Blue Top (Sodium Citrate)
Minimum Volume
Filll tube to nominal line. See BD vacutainer volume guide.
Instructions
Gently mix by inversion upon collection.
Transport Container
BLUE Tube
Transport Temperature
Room Temperature
Specimen Stability
15-30°C up to 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
- Seum
- EDTA plasma
- Clotted
- Hemolyzed
Methodology
Electromagnetic Mechanical Clot Detection
Setup Schedule
DAILY, as received
Report Available
STAT: <60 minutes
Routine: <4 hours
Routine: <4 hours
Reference Range
Male/Female All Ages:
- Normal Range: 11.9-15.0 SEC
- IMMEDIATE See report for normal ranges.
- POST INCUBATION See report for normal ranges.
Clinical Significance
A prolongation of a patient's clotting times may indicate a factor deficiency or the presence of an inhibitor. A factor deficiency is suspected if the clotting times are corrected after mixing the patient's sample with normal plasma. If the clotting time of such a mixture resembles the abnormal value, an inhibitor is most likely present.
Performing Laboratory
Mount Sinai Hospital
Holy Cross Hospital
Additional Information
BD Vacutainer Blue Top Volume Guide
