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Anaplasma phagocytophilum (HGA) Antibody, IgM
0097318
Ordering Recommendation
Most useful to detect antibodies during acute phase of disease; recommend concurrent testing with IgG A. phagocyophilium. PCR testing is preferred; refer to Tick-Borne Disease Panel by PCR, Blood (2008670) or Ehrlichia and Anaplasma Species by Real-Time PCR (2007862).
Mnemonic
HGE IGM
Methodology
Semi-Quantitative Indirect Fluorescent Antibody
Performed
Tue, Fri
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube.  
Specimen Preparation
Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.05 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Bacterially contaminated, heat inactivated, hemolyzed, icteric, lipemic, or turbid specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year  
Reference Interval
Less than 1:16 - No significant level of IgM antibodies to A. phagocytophilum detected.
Greater than or equal to 1:16 - Suggestive of a current or recent infection with A. phagocytophilum.
Interpretive Data


Compliance Statement B: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
Note
CPT Code(s)
86666
Components
Component Test Code*Component Chart NameLOINC
0097318A. Phagocytophilum Antibody, IgM23878-2
* 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
  • Anaplasma phagocytophilum IgM
  • Ehrlichiosis Serology
  • HGE
  • Phagocytophilum Titer