The nurse is caring for a child brought to the emergency department by a babysitter. The child needs an emergency appendectomy and the parents cannot be contacted. What would be the nurse's best response to this situation?

Have the primary care physician for the child sign the consent form.

Delay medical care until the child's next of kin can be contacted.

Document failed attempts to obtain consent to allow emergency care.

Have the babysitter sign the consent form even if she does not have signed papers to do so.