Lupus Anticoagulant
Order Code: LUPUS
Specimen:
Citrated Whole Blood
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
Testing Schedule:
0800-1630 Monday through Friday.
Analytic Time:
24-36 hours
Methodology:
A prolonged PTT is investigated to determine the presence of a Lupus Anticoagulant.
Sample Processing:
Centrifuge at 3500 RPM for 10 minutes.
Aliquot plasma into labeled container and cap.
Centrifuge a second time at 3500 RPM for 10 minutes and aliquot into a new, labeled plastic tube.
Sample Storage:
Freeze specimen immediately.
Transport Instructions:
Place requisition into outside pocket of bag.
Place specimen into zip-lock type bag, seal bag.
Place dry ice on top of specimen in styrofoam container.
Dry Ice up to 24 hours.
CPT Code:
PT = 85610
PTT = 85730
MPTT = 85732
FIGB = 85384
TT = 85670
IMPTT = 85557
HPTT = 85525
DVV = 85613
MDVV = 85613
DVVC = 85613
PNP 85597
LUPUSI = 80500 (Pathologist Consult)

See Lupus Algorithm for CPT details.
 
See also:
Cardiolipin Antibody, IgG and IgM, Serum
 
See Additional Information:
Antiphospholipid Syndrome (APS): Laboratory Evaluation
Phlebotomy Tubes and Order of Draw