In Which Circumstance Might the Nurse Defer Obtaining Informed Consent

In which circumstance might the nurse defer obtaining informed consent for care and treatment of a patient?

A) The patient is confused and cannot understand or sign the consent form.
B) The patient is brought to the emergency department in cardiac arrest; no family is present.
C) The surgeon requests that the patient be sent to the surgical suite before you get the consent form signed.
D) An unconscious patient is admitted to your unit; he is alone.