Home
HelpCatalog ID LAS Lupus Anticoagulant Screen
CPOE Test Name
Lupus Anticoagulant Screen; LAS Screen
Synonyms
LAS; Mixing Studies
Specimen Type
Plasma
Specimen Requirements
Light Blue Top (Sodium Citrate) tube; 2.7 mL blood
Storage and Transport
Room temperature. Transport to the lab immediately.
Special Instructions
Deliver specimen to lab immediately after collection
Causes for Rejection
Tube improperly filled; clotted; hemolysis; improper labeling; insufficient quantity; delay in transport
Reference Range
Negative
Critical Values
Positive
Turn Around Time
3 hours
Performing Lab
Core Laboratory BI 2023 721-2120
Test Consists
PT/aPTT and mixing study
CPT / HCPCS Code
85300