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Lupus Anticoagulant Profile

Test Name:Lupus Anticoagulant Profile
Epic Order Code:LAB478
CPT Code:85705  
Specimen(s) Type:Citrated plasma (4 full tubes) 
Acceptable Container(s):4 X Top is light blue.
Testing Schedule:Monday-Friday, 8 a.m.-3 p.m.
Turn Around Time:STAT: NA
 Routine: 3-5 days
Collection Information:No special patient preparation is required. Obtain specimen by standard collection procedures. 4 full blue top tubes are required.
Transport Information:Deliver to lab immediately. All specimens must be signed into the laboratory.
Reference Clients:If unable to deliver to the lab within 1 hour, centrifuge the specimen for 10 minutes at 3500 RPM. Remove plasma from cells, and place in separate transport tubes. Store and transport at room temperature for up to 4 hours. If testing is delayed beyond this, the sample must be stored and transported frozen at -20° C and delivered to lab within 2 weeks.
Causes for Rejection:Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport, grossly hemolyzed, clotted, under or over-filled tube.
Reference Range:aPTT: 23.4 - 35.1 sec.
 APTT with PSL: 25.9 - 40.0 sec.
 DRVVT: Negative
 Dilute PT: Negative
 PT INR: 9.9 - 13.2 sec.
 INR: 0.9 - 1.2
Additional Information: