LCM Virus IgG and IgM Antibodies, Serum (Sendout)

General Information

Lab Name
Lab Code: 645
External Test Id: 2001635
Description: Ordering Recommendation: Aid in the diagnosis of lymphocytic choriomeningitis (LCM) viral infection.

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.

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."
Synonyms: 2001635, LCM, Lymphocytic Choriomeningitis Virus, VSLCM
Components

Method

Semi-Quantitative Indirect Fluorescent Antibody

Reference Range

Ref. Range Notes

Reference Intervals:

LCM Virus Ab, IgG:	<1:10
LCM Virus Ab, IgM:	<1:10

Interpretation:

Lymphocytic 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.

Lymphocytic 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.

Specimen Type: Blood
Collection: Collect 3 mL blood in RED TOP tube or GOLD SST
Handling Instructions: Outside Laboratories: Centrifuge sample and transfer serum to a separate plastic vial within 2 hours of collection. Refrigerate serum while awaiting shipment. Transport with a cold pack.

Stability: Refrigerated (preferred): 2 weeks; Frozen: 1 year; Ambient: 48 hours.
Quantity: Requested: 1 mL serum
Minimum: 0.2 mL serum

Receiving Instructions

Centrifuge sample and transfer serum to a separate plastic vial within 2 hours of collection. Refrigerate serum.

Sendouts:

Order ARUP Test: 2001635
Interfaced: Yes [Interface: 602; Department: ARPR]
If parallel testing is ordered, clearly mark specimens as "acute" or "convalescent."

Stability: Refrigerated (preferred): 2 weeks; Frozen: 1 year; Ambient: 48 hours.

Lab Department

Frequency

Performed: Tuesday, Friday. Reported: 1-5 day from sample receipt at ARUP Laboratories.

Available STAT?

Performing Location(s)

Sendout	ARUP Laboratories, Inc. 800-522-2787 500 Chipeta Way Salt Lake City, UT 84108