Clinical preventive services are the most cost-effective.

The most cost-effective content of clinical preventive service is (a)

A. Health consultation and education

B. Health survey

C. Immunization

D. Chemical prevention

E. Prevention method

Definition: Clinical preventive service refers to evaluating the health risk factors of healthy people and asymptomatic "patients" in clinical places (including community health service personnel at home and community places), and then implementing individualized preventive intervention measures to prevent diseases and promote health.

Preventive service content

1. Health consultation for medical practitioners

By collecting the health risk factors of medical practitioners, working out plans to change unhealthy behaviors with medical practitioners and urging medical practitioners to implement intervention plans, they can be prompted to consciously adopt healthy behaviors and lifestyles, eliminate or alleviate the risk factors affecting health, prevent diseases, promote health and improve the quality of life.

2. Health survey

It refers to the use of rapid and simple physical examination or laboratory examination, as well as monitoring and evaluation of risk factors, to find unidentified patients or people with health defects in healthy people.

3. Immunization

Refers to the injection of antigens or antibodies into the body, so that the human body can gain specific resistance to certain diseases, thus protecting susceptible people and preventing infectious diseases.

4. Chemical prevention

It refers to the use of drugs, nutrients (including minerals), biological agents or other natural substances as primary preventive measures for asymptomatic people to improve their ability to resist diseases and prevent the occurrence of certain diseases.