In some cultures, negative prognoses are not shared directly with the patient. If a patient wishes for another person (such as a parent or child) to receive information about her diagnosis, she must use ___..

Although, at present, every patient must know what the state of their health and prognosis of his illness, If a patient wishes for another person -such as a parent or child- to receive information about her diagnosis, she must use a informed consent.

Explanation:

Taking into account the ethical principles in medicine and the basis of the doctor-patient relationship, a sick person must know their correct diagnosis and the prognosis of their disease in order to accept the most appropriate treatment to regain their health.

Hiding the truth about the prognosis of a disease relates to the medical perception that a poor prognosis can affect the patient's mood and worsen their clinical condition. But many times this situation is not the most correct, and it can affect the confidence in the attending physician.

In one way or another, informed consent is necessary to authorize the doctor to perform any procedure or treatment necessary to combat the disease, as well as a useful tool to authorize other close people to know their health status, prognosis and treatment.

Learn more:

Principles of Informed Consent link

i think the answer is d.