Final answer:
No, a RDA cannot fill out and sign a patient's work excuse without authorization from the dentist.
Step-by-step explanation:
No, a RDA (Registered Dental Assistant) cannot fill out and sign a patient's work excuse without prior authorization from the dentist.
As a dental assistant, the RDA is responsible for assisting the dentist in patient care, but they do not have the authority to make medical decisions or provide treatment without the supervision and approval of the dentist.
Filling out and signing a work excuse would fall under the category of making a medical decision, which is outside the scope of practice for a dental assistant.
If a patient needs a work excuse, they should consult with the dentist, who can assess their condition and determine if they are eligible for an excuse based on their dental treatment.