What do you mean by "two front and three back"

The five major moments of hand hygiene proposed by the World Health Organization (WHO) include: before contact with patients, before cleaning/aseptic operation, after contact with body fluids, after contact with patients, and after contact with patients' surroundings.

Hand hygiene? Five moments? The concept covers all kinds of activities and places that need hand hygiene in medical services (there is no detailed list). It does not define one or more processes and nursing places, but pays more attention to the moment when hand hygiene is needed in the process of diagnosis and treatment. This concept has not reduced the need for hand hygiene. It is a tool to identify when hand hygiene is necessary, and it is also a tool to distinguish when hand hygiene is useless.

5 moments of hand hygiene? In fact, it should be noted that for patients, the medical environment can be divided into two basic geographical areas? Patient area? And then what? Medical field? .

Patient area? Including the patient and some surfaces and objects temporarily belonging to him/her, such as bedside pager, bedside table, bed sheets, infusion tubes and other medical devices.

Medical field? It is equivalent to all surfaces in the medical environment except a patient area, such as other patients and their patient areas and the broader medical environment.