Overview: Mycoplasma Pneumoniae IgG TestIntroduction: The Mycoplasma Pneumoniae IgG Test detects Mycoplasma IgG to confirm past infection or immunity, preventing pneumonia or cough. Aligned with 2023 IDSA guidelines, it uses immunoassay for high specificity, supporting infection screening. This test is critical for guiding immunity assessment, treatment planning, and improving outcomes in serology for patients with suspected Mycoplasma pneumoniae exposure.
Other Names: Mycoplasma IgG Assay, Mycoplasma Immunity Test.
FDA Status: Laboratory-developed test (LDT), meeting serology standards for diagnostic accuracy.
Historical Milestone: Mycoplasma IgG testing began in the 1970s with pneumonia research. Immunoassay methods improved in the 2000s, enhancing diagnostic precision.
Purpose: Detects Mycoplasma IgG to confirm past infection or immunity, guides treatment, and evaluates patients with suspected Mycoplasma exposure.
Test Parameters: 1. Mycoplasma Pneumoniae IgG Antibodies
Pretest Condition: No fasting required. Collect serum or saliva. Report history of pneumonia, cough, or Mycoplasma exposure.
Specimen: Serum (SST, 2-5 mL), Saliva (sterile container, 1-2 mL). Transport in a biohazard container.
Sample Stability at Room Temperature: 8 hours
Sample Stability at Refrigeration: 7 days
Sample Stability at Frozen: 6 months
Medical History: Document pneumonia, cough, fever, or history of Mycoplasma exposure. Include current medications, especially antibiotics.
Consent: Written consent required, detailing the tests purpose, Mycoplasma immunity implications, and risks of sample collection.
Procedural Considerations: Uses immunoassay to detect Mycoplasma IgG in serum or saliva. Results are available in 1-2 days, supporting rapid clinical decisions. Performed in laboratories, often for Mycoplasma immunity assessment.
Factors Affecting Result Accuracy: Hemolysis, lipemia, or improper sample storage can affect results. Immunosuppression may reduce antibody detection.
Clinical Significance: Positive Mycoplasma IgG confirms past infection or immunity, guiding treatment or preventive measures. Negative results may indicate need for IgM testing.
Specialist Consultation: Consult an infectious disease specialist or pulmonologist for result interpretation and treatment planning.
Additional Supporting Tests: Mycoplasma IgM, PCR, or chest X-ray to confirm Mycoplasma infection status.
Test Limitations: May not detect recent infection; clinical correlation is needed. Immunosuppression affects results.
References: IDSA Mycoplasma Guidelines, 2023; Clinical Infectious Diseases, Waites KB, 2022.
