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HelpTest Code LAB2312 PTT Mixing Studies
Test Performed By
Cayuga Medical Center, Main Laboratory
List Price
80.00
Specimen Type
Plasma
Container Name
Light-blue top (citrate)
Specimen Volume
4 mL
Minimum Specimen Volume
4 mL
Temperature
ambient or refrigerated
Specimen Stability
Stability: 4 hours ambient or refrigerated
Collection outside of Main Campus and PSC locations must aliquot and transport frozen.
Freeze plasma if testing is not performed within 4 hours.
Day(s) and Time(s) Test Performed
Monday through Friday, must arrive by 2 pm
Clinical and Interpretive
Mixing studies are performed to determine whether a prolonged PTT is due to factor deficiency or an inhibitor. Patient plasma is mixed with normal plasma and PTT is measured. Pathologist interpretation is provided on all mixing studies.