Examination methods for mild pneumonia in children

In fact, many times, babies should pay attention to their hygiene, do not let bacteria enter their bodies, and do not take them to crowded places, otherwise it will cause mild pneumonia in children. So let us learn about the examination methods for mild pneumonia in children.

Inspection method:

1. Peripheral blood picture: The white blood cell count and neutrophil count increased significantly, reaching (15-40)×109/L, occasionally reaching (50-70)×109/L, mainly neutrophils, with left-shifted nuclei and visible toxic granules. However, a small number of children have a decrease in leukocytes, indicating that the disease is serious.

2. Pathogen examination: Culture of airway secretions, blood, and pleural effusion can obtain Streptococcus pneumoniae. Direct sputum smear staining and microscopic examination may be diagnostic if Gram-positive diplococci arranged in pairs are found. The growth of Streptococcus pneumoniae in sputum and blood culture can confirm the diagnosis, but the positive rate is not high.

3. Serological examination: 10% to 30% of children with pneumococcal pneumonia have bacteremia, but due to the early use of antibiotics, the positive rate of blood culture in China is very low. Currently, the etiological diagnosis of pneumococcal pneumonia is mostly done through serological methods, such as measuring pneumococcal antigens in the serum, urine or saliva of children, but some authors believe that this method cannot distinguish between pneumococcal infection and colonization. Recently, there have been reports of diagnosis by measuring serum pneumolysin antibodies or circulating immune complexes containing antibodies against specific capsular polysaccharides of Streptococcus pneumoniae, specific capsular polysaccharide complexes, and protein antigen Pneumolysin, but its sensitivity is still insufficient in infants.

Blood and urine samples can be collected to detect pneumococcal capsular antigens using CIE, LA and other methods, and pneumococcal antibodies can be measured using radioimmunoassay, bactericidal test and EIJSA for auxiliary diagnosis. C-reactive protein is often positive.

4. Others In addition, trace amounts of protein can be seen in urine examinations, and Streptococcus pneumoniae can be cultured from the nasopharyngeal secretions of most children, but its pathogenic significance cannot be confirmed. If blood culture or pleural effusion culture can be performed before the use of antibiotics, it will have certain diagnostic significance.

The above article will introduce in detail some examination methods for mild pneumonia in children. I believe everyone has a relatively preliminary understanding. Therefore, in daily life, if such a situation occurs, pay attention to keeping them warm and breathing unobstructed.