Lupus Anticoagulant Evaluation with Reflex
Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.
If the PTT-LA is >40, then the Hexagonal Phase Confirmation (FHEXC) will be performed at an additional charge.
If the Hexagonal Phase Confirm is positive or weakly positive, a Thrombin Clotting Time (FCLOT) will be performed at an additional charge.
If the DRVVT Screen is >45 then the DRVVT Confirmation (FDVTC) will be performed at an additional charge.
If the DRVVT Confirmation is positive, then the DRVVT 1:1 Mix (FDVTX) will be performed at an additional charge.
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
Lupus Anticoagulant Not Detected
This interpretation is based on the following test results:
PTT-LA Screen < or = 40 seconds
DRVVT Screen < or = 45 seconds