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Mixing Study APTT
Test CodeMSTUDA
Preferred Specimen
Sodium Citrate Blue Top
Minimum Volume
Blue Top Must be Completely Filled
Instructions
Invert tube immediately after collection. ONLY ordered by lab personnel.
Separate the plasma using a plastic transfer pipette and transfer to a plastic tube without disturbing the buffy coat.
Separate the plasma using a plastic transfer pipette and transfer to a plastic tube without disturbing the buffy coat.
Transport Container
Biohazard Bag
Transport Temperature
Ambient up to 4 hours. However, if specimen is not able to be assayed immediately, it should be placed on ice or frozen and shipped. It must be run with 4-6 hours.
Specimen Stability
All blue top, coag specimens are discarded after 2 days.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted, hemolyzed, or quality not sufficient specimens
Setup Schedule
Day Shift Only
Performing Laboratory
Baptist Health - LR, Coagulation Department
Last Updated: September 14, 2021
