Indicators of Mycoplasma pneumoniae infection

Mycoplasma pneumoniae infection is a common infectious disease in clinical practice. For Mycoplasma pneumoniae infection, serum IgG and IgM antibodies are usually tested, and these two antibodies are important indicators of recent and acute infection with Mycoplasma pneumoniae. Patients can also make a comprehensive judgment through sputum examination, serum antibody examination, and imaging examination.

1. Serum IgG and IgM antibodies: After Mycoplasma pneumoniae infection, IgG and IgM antibodies in serum can be detected, and the titers of these two antibodies have a certain relationship with recent infection.If the titer is gradually elevated, it indicates that the infection is gradually recovering, which is an indicator of recent infection;

2. Sputum examination: patients can take sputum samples from patients for Gram staining, if the Gram stain is found to be positive, or if Mycoplasma pneumoniae is cultured, it usually indicates recent mycoplasma infection. If the result is negative, mycoplasma infection is not present, but mycoplasma infection cannot be completely ruled out;

3. Serum antibody test: If the serum antibody test result is positive, IgG and IgM antibodies are positive, it usually means that the patient is infected with mycoplasma, but there is no related infection. However, if the laboratory results are to be determined, a comprehensive judgment needs to be made in combination with the patient's clinical symptoms and chest X-ray findings;

4. Imaging examination: If the patient finds that there are patchy and flocculent bronchopneumonia manifestations in the lungs through imaging examination, it usually means that the patient has clinical symptoms of mycoplasma infection.

The results of blood tests cannot be relied upon to determine whether a patient has Mycoplasma pneumoniae infection. However, if the patient has symptoms such as cough, sputum production, and fever, and the serum antibody test result is positive, combined with the clinical manifestations, the diagnosis of mycoplasma infection can be made.