What are the inspection items of typhoid and paratyphoid?

summary

Typhoid and paratyphoid are acute digestive tract infectious diseases caused by typhoid and PARATYPHOID BACILLI a, B and C. clinically, they are characterized by persistent high fever, relative bradycardia, characteristic toxic symptoms, splenomegaly, rosette and leukopenia. Intestinal bleeding and perforation were the main complications. The main pathological feature of typhoid fever is the proliferative reaction of systemic reticuloendothelial system, especially in the lower segment of ileum. Paratyphoid fever is caused by paratyphoid A, B and C bacilli. Typhoid and paratyphoid what are the inspection items now talk to you.

What are the inspection items of typhoid and paratyphoid?

Most of the white blood cells were 3 × 109/L～4 × The number of eosinophils was more than 2% in polar phase, and the absolute count was more than 4% × Typhoid fever can be basically excluded in the case of 108 / L, mild proteinuria can be found in the case of high fever, and fecal occult blood test is positive.

Feida's test, typhoid serum agglutination test, that is, Feida's reaction positive, has auxiliary diagnostic value for typhoid and paratyphoid. The antigens used in the examination include typhoid bacilli (o) antigen, flagella (H) antigen, paratyphoid A, B, C flagella antigen. The purpose is to determine the agglutination titer of various antibodies in the patient's serum by coagulation method, Generally, the positive rate gradually increased from the second week to 90% in the fourth week. The positive reaction lasted for several months after the disease recovered. A few patients' antibody increased very late, and even the antibody titer was very low (14.4%) or negative (7.8% - 10%) in the whole course of the disease, so the disease could not be ruled out.

Passive hemagglutination test (PHA): red blood cells were sensitized with Salmonella typhi cell antigen to react with the tested serum, and the presence of typhoid specific antibody was judged according to the agglutination status of red blood cells. The positive rate was 90% - 98.35%, and the false positive rate was about 5%. Bao Xinghao reported that the detection rate of lsp-pha in patients with typhoid blood culture was 89.66%, and 90.02% in early patients, The clinical diagnosis rate was 82.5%, and the main detection was specific IgM antibody, so it can be used for early diagnosis.

matters needing attention

When there are typhoid patients at home and around, we should pay more attention to self-protection, and we can use boiling, soaking in disinfectants and other methods to disinfect the articles that may be polluted. For emergency preventive medication, compound sulfamethoxazole 2 tablets can be used, twice a day for 3-5 days.