Prothrombin Antibodies, IgG & IgM
2004411
Ordering Recommendation
Preferred second-line testing for strong suspicion of seronegative antiphospholipid syndrome (APS). Order incrementally or concurrently with other non-criteria antiphospholipid antibody tests.
Mnemonic
PROTHROMPN
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Mon
Reported
1-8 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube or lt. blue (sodium citrate).  
Specimen Preparation
Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.3 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Hemolyzed, grossly icteric, or lipemic specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year  
Reference Interval
 
 
Test Number Components Reference Interval
0051302Prothrombin Antibody, IgG Less than 20.0 Units
0051303Prothrombin Antibody, IgM Less than 20.0 Units
Interpretive Data
 
Note
 
CPT Code(s)
86849 x2
Components
Component Test Code*Component Chart NameLOINC
0051302Prothrombin Antibody, IgG40595-1
0051303Prothrombin Antibody, IgM40596-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Anti-Prothrombin Antibodies
  • Antiprothrombin Antibodies
  • aPT Antibodies
  • Prothrombin IgG IgM