Lupus Anticoagulant
| Label Mnemonic: | LUPUS |
| Epic code: | LAB478 |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | Dilute Viper Venom Test - 85613 Clinical Pathology Consultation Limited - 80500 Prothrombin Time - 85610 Thromboplastin Time Partial Plasma/Whole Blood - 85730 Fibrinogen Activity - 85384 Thrombin Time Plasma - 85670 Thromboplastin Time Prtl Substit Plasma Frctj Ea - 85732 Heparin Assay - 85520 See Lupus Algorithm for CPT details. |
Specimen(s):
Citrated Whole Blood More information
Collection Medium:
 | and | |
| Light Blue top tube 2.7 mL (Na Citrate) | Light Blue top tube 2.7 mL (Na Citrate) |
Minimum:
Collect TWO full tubes - 2.7 mL citrated (light blue top) tube
Rejection Criteria:
Short drawn tube, clot, traumatic tap (excessive hemolysis). Add on testing is not allowed.
Testing
Schedule:
0800-1630 Monday, Wednesday and Friday. If you need results STAT, call Hematology resident (0800-1630, M-F) at 356-8628. All other times page the Pathology resident on-call at 3404.
Turn Around
Time:
24-36 hours
Methodology:
A prolonged PTT is investigated to determine the presence of a Lupus
Anticoagulant.
Sample
Processing:
Centrifuge within four hours of draw time.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Separate plasma into plastic container and cap (glass is not acceptable).
Centrifuge a second time to ensure platelet poor plasma and separate plasma into a new, labeled plastic tube, cap.
Submit specimen in TWO labeled plastic aliquot containers containing equal volumes of plasma.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Separate plasma into plastic container and cap (glass is not acceptable).
Centrifuge a second time to ensure platelet poor plasma and separate plasma into a new, labeled plastic tube, cap.
Submit specimen in TWO labeled plastic aliquot containers containing equal volumes of plasma.
Sample
Storage:
Freeze specimen immediately.
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in Styrofoam container to maintain frozen temperature.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in Styrofoam container to maintain frozen temperature.
CPT Code:
Dilute Viper Venom Test - 85613
Clinical Pathology Consultation Limited - 80500
Prothrombin Time - 85610
Thromboplastin Time Partial Plasma/Whole Blood - 85730
Fibrinogen Activity - 85384
Thrombin Time Plasma - 85670
Thromboplastin Time Prtl Substit Plasma Frctj Ea - 85732
Heparin Assay - 85520
See Lupus Algorithm for CPT details.
Clinical Pathology Consultation Limited - 80500
Prothrombin Time - 85610
Thromboplastin Time Partial Plasma/Whole Blood - 85730
Fibrinogen Activity - 85384
Thrombin Time Plasma - 85670
Thromboplastin Time Prtl Substit Plasma Frctj Ea - 85732
Heparin Assay - 85520
See Lupus Algorithm for CPT details.