| 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: N/A |
| 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: | |