The statement about medical staff's breastplates is wrong.

Medical staff badge is a kind of identification, which is usually issued by medical institutions to medical staff to wear, so that patients and their families can identify and confirm the identity and professional qualifications of medical staff. However, some statements about medical staff badges are wrong. Here are some common misunderstandings:

1. Medical personnel must wear badges to carry out medical work. This statement is incorrect. The qualification and practicing certificate of medical staff are the key to their medical work, and the badge is just an identity certificate, which is convenient for patients and their families to confirm the identity of medical staff. Medical staff can do medical work without wearing badges, but this may bring confusion to patients and their families.

2. The professional title on the name card of medical staff can be used to evaluate the level of medical staff. This statement is also incorrect. The professional title of medical staff and the words on the breastplate do not represent their medical level and ability, which need to be examined and confirmed by medical institutions and relevant departments.

3. The badges of medical staff can be changed and bought and sold at will. This statement is also wrong. Medical staff badges are issued by medical institutions to medical staff to wear, and are not commodities that can be bought, sold and replaced freely. If medical personnel need to change their badges, they need to apply to medical institutions through formal channels.