How can bacterial infection blood meet?

summary

Bacterial infection and viral infection are two common types of infection in clinic. Generally speaking, the diagnosis of infectious diseases mainly depends on pathogen detection, but its disadvantage is that the detection process is too long, which may delay the diagnosis and treatment of the disease. Today, let me share with you what happens to blood infected by bacteria?.

How can bacterial infection blood meet?

First, immune function is low. The normal immune system of human body mainly includes humoral immunity and cellular immunity. The former is necessary to enhance the production of phage antibody. The latter mainly controls the infection of bacteria and viruses in cells. High dose of radiotherapy and chemotherapy can lead to granulocytopenia and decrease the number of lymphocytes, thus inhibiting cellular and humoral immunity. Especially after bone marrow transplantation, cellular immunity and humoral immunity remained low for a long time; If accompanied by the application of hormone and can lead to t, B lymphocyte nuclear macrophage function decreased, easy to lead to a variety of microbial infection.

Second, the most important factor of infection is leucopenia, and the incidence of infection is closely related to the degree and duration of leucopenia. When mature neutrophils ＜ 0.5 × The infection rate was 90% when the granulocyte count decreased to 0.1% × At 109 / L, severe infection and even sepsis are very easy to occur.

Third: dysbacteriosis. There are normal flora on the surface of skin and mucous membrane of normal body. They can release some bacteriocins and have antibacterial effect. They play an important role in maintaining body balance and internal environment stability. They can stimulate the body to produce antibodies and participate in material metabolism, nutrient transformation and synthesis. Generally, they are beneficial and harmless to the host. When patients with hematological diseases use sufficient broad-spectrum antibiotics and immunosuppressants, it is easy to cause dysbacteriosis and infection.

matters needing attention

For patients with fever, when using antipyretic and analgesic drugs, if the upper respiratory tract infection is caused by virus, it can often get temporary and obvious antipyretic effect, and the systemic situation can also be improved.