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Test Code LEGAM Legionella pneumophila Antibody (Types 1-6), IgM by IFA

Clinical Indications

May be useful when acute legionellosis is suspected; however, Legionella pneumophila Antigen, Urine is preferred.

Additional Test Codes

Epic Order Name: LEGIONELLA AB IGM (aka LEGAM)
Sunquest Order Code: LEGAM
Epic Px Code: LAB2356

Specimen Collection Type

Preferred: Gold
Acceptable: Red

Minimum Collection Volume

0.1 mL

Reference Range

< 1:16

Critical Value

N/A

Interpretation

IgM antibody to Legionella pneumophila serotypes 1-6 is measured using an IgM-specific conjugate. It is recommended that the IgM test always be performed in conjunction with IgG antibody test.

The IgM response to Legionella tends to develop concurrently with the IgG response and may remain elevated as long as the IgG response remains elevated. Cross-reactions have been described with several species of bacteria and Mycoplasma.

Rejection Criteria

Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.

Specimen Availability for Add-on Testing

2 Days

Specimen Stability

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

Day(s) Performed

Mon-Fri

Performing Lab- Department

TUKHS-BH-Mail Outs

CPT Code

86713

LOINC Code

16133-1

Test Alias

L pneumophila IgM
L pneumophila Types 1-6 Ab
Legionella pneumophila IgM antibody
Legionnaires Disease Testing

Additional Information / Notes

N/A