It shall be considered unprofessional conduct for a chiropractor to perform an adjustment of the coccyx through the vagina unless the following conditions are met:

(1) The coccyx cannot be adjusted rectally or the patient is offered and declines the option of the rectal technique;

(2) The coccyx adjustment is performed with the use of a disposable finger cot or rubber glove; and

(3) A female attendant is present at all times the patient is examined and the coccyx adjustment is being performed.