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Lupus Anticoagulant Group
Test CodeLUPUS
Alias/See Also
DRVVT, Dilute Russell's Viper Venom Test and Hexagonal Phase Phospholipid (STACLOT-LA), Lupus Inhibitor, Lupus Anticoagulant (LA)
CPT Codes
85610, 85730, 85670, 85613
Includes
Prothrombin Time INR, PTT, TT, DVV, LA
Preferred Specimen
3 tubes 1.8 mL Buff. Na Citrate, 3.2% (blue top tube)
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: PROTHROMBIN TIME
Male/Female All Ages:
Normal Range: 11.0-15.6 SECONDS
Test: INR
Male/Female All Ages:
Normal Range: 0.00-1.42 RATIO
Critical High : >=5.00 RATIO
Test: PTT ACTIVATED, PLASMA
Male/Female All Ages:
Normal Range: 22.3-37.9 SECONDS
Critical High : >=120.0 SECONDS
Test: THROMBIN TIME, PLASMA
Male/Female All Ages:
Normal Range: 12.5-17.8 SECONDS
Test: DILUTE VIPER VENOM,SCREEN
Male/Female All Ages:
Normal: NEGATIVE
Positive (Reported as POSITIVE)
Test: LUPUS ANTICOAG INTERPRETATION
Male/Female All Ages:
Normal: NORMAL
Positive (Reported as NORHEP1, FACTOR COMMENT 1, FACTOR COMMENT 2, FACTOR COMMENT 3, INHIBIT, OTHER, NORCOUM, OTHER1)
"
Male/Female All Ages:
Normal Range: 11.0-15.6 SECONDS
Test: INR
Male/Female All Ages:
Normal Range: 0.00-1.42 RATIO
Critical High : >=5.00 RATIO
Test: PTT ACTIVATED, PLASMA
Male/Female All Ages:
Normal Range: 22.3-37.9 SECONDS
Critical High : >=120.0 SECONDS
Test: THROMBIN TIME, PLASMA
Male/Female All Ages:
Normal Range: 12.5-17.8 SECONDS
Test: DILUTE VIPER VENOM,SCREEN
Male/Female All Ages:
Normal: NEGATIVE
Positive (Reported as POSITIVE)
Test: LUPUS ANTICOAG INTERPRETATION
Male/Female All Ages:
Normal: NORMAL
Positive (Reported as NORHEP1, FACTOR COMMENT 1, FACTOR COMMENT 2, FACTOR COMMENT 3, INHIBIT, OTHER, NORCOUM, OTHER1)
"
Performing Laboratory
Little Company of Mary Hospital
2800 W. 95th St.
Evergreen Park, IL 60805
