ARUP's Laboratory Test Directory

Lymphocytic Choriomeningitis (LCM) Virus Antibodies, IgG & IgM : 2001635

Mnemonic: LCM SER

Methodology: Semi-Quantitative Indirect Fluorescent Antibody
Performed: Tue, Fri
Reported: 1-5 days
Specimen Required: Collect: 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: Refrigerated.

Unacceptable Conditions: Contaminated, hemolyzed, or severely lipemic specimens.

Stability (collection to initiation of testing): 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.

See Compliance Statement D: www.aruplab.com/CS
CPT Code(s): 86727 x2