The burden of proof in a lawsuit alleging professional negligence requires that:
a. a duty to the patient existed
b. care was given only by registered professional nurses.
c. the injuries were caused by the patient's failure to follow procedures.
d. the patient's injuries occurred only after his discharge.

d. the patient's injuries occurred only after his discharge.

Explanation:

The burden of proof in a lawsuit alleging professional negligence requires that, the patient's injuries occurred only after his discharge.

This means that, the proffesionals had no wrong doing because the patient sustained injuries after being discharged from the hospital.

of

explanation:

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.