Lymphocytic Choriomeningitis (LCM) Virus Antibodies, IgG & IgM
Ordering Recommendation
Identify lymphocytic choriomeningitis virus as pathogen for meningitis.
Semi-Quantitative Indirect Fluorescent Antibody
Tue, Fri
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min 0.2 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."  
Storage/Transport Temperature
Unacceptable Conditions
Contaminated, hemolyzed, or severely lipemic specimens.  
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Test Number Components Reference Interval
2001633Lymphocytic Choriomeningitis (LCM) Virus Antibody, IgG < 1:10 Negative -​ No significant level of LCM virus IgG antibody detected.
≥ 1:10 Positive -​ Presence of IgG antibody to LCM virus detected, suggestive of current or past infection.
2001634Lymphocytic Choriomeningitis (LCM) Virus Antibody, IgM < 1:10 Negative -​ No significant level of LCM virus IgM antibody detected.
≥ 1:10 Positive -​ Presence of IgM antibody to LCM virus detected, suggestive of current or past infection.
Interpretive Data
The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.

Compliance Statement D: 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.
CPT Code(s)
86727 x2
Component Test Code*Component Chart NameLOINC
2001636LCM Virus Ab, IgG9765-9
2001637LCM Virus Ab, IgM9767-5
* 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.
  • LCM Antibodies, Serum