Legionella pneumophila Antibody (IgG)

Last Modified: 5/2/2022 1:58:01 PM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements:

1.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:  
Minimum Volume: 0.2 mL Serum
Transport & Storage: Temperature/Stability: 7 days Ambient (Transport)
14 days Refrigerated
30 days Frozen
Reference Range: <1:64 titer
Critical Ranges:  
Test Comments:  
Methodology: Immunofluorescence Assay (IFA)
Clinical Significance: Legionella infection is associated with 2 clinically and epidemiologically distinct illnesses. Legionnaires disease and Pontiac fever. Legionnaires disease is characterized by fever, cough, myalgia, and pneumonia, whereas, Pontiac fever is a milder illness without pneumonia. Inhaling aerosols of water contaminated with Legionella species is believed to be the primary mode of infection; the incubation period is generally 2-10 days. A 4-fold rise in IgG IFA Antibody titer to >1:128 between acute and convalescent sera may be used in the laboratory confirmation of Legionella infection.
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Days Performed: Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly to San Juan Capistrano
PHL Test Code: LEGAB
EPIC Test Code: LAB3089
Send Out Test Code: 36580
Alternate Test Names: Legionella AB IgG, IFA; Legionella pneumophila Antibody (IgG), IFA
Included Tests:  
CPT Coding: 86713

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