1, disinfection scope:
The disinfection range needs to exceed 15 cm around the incision, but the specific situation varies from person to person and should be operated by a regular doctor. When the indwelling needle is used, it needs to be disinfected from the inside out, ranging from 10 cm to 15 cm outside the indwelling needle area, which can effectively kill microorganisms such as bacteria and viruses and reduce the risk of inflammatory infection.
If it is surgical disinfection, it needs to be disinfected once with 2.5% iodine tincture according to the doctor's advice, and then disinfected twice with 70% alcohol after drying, which needs to exceed 15cm around the incision. When the scope of surgical incision is large, the disinfection area around the incision can be appropriately expanded.
2. Precautions for disinfection:
Medical institutions should try to choose disposable medical supplies, non-disposable medical supplies should be sterilized by pressure steam first, and heat-labile items can be disinfected or sterilized by chemical disinfectants or low-temperature sterilization equipment. The surface of environmental objects can be wiped, sprayed or soaked with disinfectants such as chlorine-containing disinfectants and chlorine dioxide.
It is suggested to choose effective hand and skin disinfectants, such as iodophor, chlorine-containing disinfectant, hydrogen peroxide disinfectant, or quick-drying hand disinfectant for wiping disinfection. Indoor air disinfection can be carried out by spraying disinfectants such as peracetic acid, chlorine dioxide and hydrogen peroxide.
Types of disinfection measures:
1, disinfect at any time:
Disinfection at any time refers to timely disinfection of articles and places contaminated by cases (suspected cases and confirmed cases) and infected persons (mild cases and asymptomatic infected persons). Places where patients have lived, such as families, isolation wards of medical institutions, medical observation places, transportation, etc.
The pollutants discharged by patients and their contaminated articles should be disinfected at any time. See terminal disinfection for disinfection methods. Spray disinfection is not recommended in the presence of people. Ventilation (including natural ventilation and mechanical ventilation) can be taken in places where patients are isolated to maintain indoor air circulation. Ventilation 2 ~ 3 times a day, each time not less than 30min.
2, terminal disinfection:
Terminal disinfection refers to the thorough disinfection after the source of infection leaves the relevant places, and it should be ensured that there are no pathogens in the places and articles after terminal disinfection. The final disinfection targets include the pollutants discharged by cases and infected persons, as well as items and places that may be contaminated, and there is no need to disinfect the outdoor environment (including air) on a large scale.