Correct Answer: C

Rationale: The correct answer is C. Older adult female clients need less iron than younger adult female clients because as women go through menopause, they no longer lose blood through menstruation, leading to a reduced need for iron. Choice A is incorrect because producing more red blood cells does not directly correlate with needing less iron. Choice B is incorrect as carrying oxygen more efficiently does not necessarily decrease the need for iron. Choice D is incorrect as exercising more does not explain the decreased need for iron in older adult female clients.

Correct Answer: D

Rationale: To ensure client safety before starting blood transfusions, taking baseline vital signs, warming the blood to room temperature, and having two nurses verify client identification, blood type, unit number, and expiration date of blood are crucial steps. Consent for blood transfusion is required but is typically obtained before the procedure. The focus before the procedure should be on confirming the right client, blood product, and ensuring the blood is prepared correctly to minimize risks of transfusion reactions.

Correct Answer: A

Rationale: In the scenario described, when a patient is unconscious and unable to provide consent, the responsibility usually falls on the physician to make decisions regarding the patient's treatment, including obtaining consent for an operation. While nurses play a crucial role in patient care, they typically do not have the authority to provide consent for a major procedure. The next of kin may be consulted for input, but the ultimate decision-making authority lies with the physician. The patient, being unconscious, is unable to provide consent in this situation.

Correct Answer: C

Rationale: The priority nursing goal for an adolescent with anorexia nervosa is to stop weight loss or restore weight. This is crucial in addressing the immediate health risks associated with anorexia nervosa, such as malnutrition, organ damage, and potential life-threatening complications. While encouraging effective coping skills, restoring normal eating habits, and promoting a realistic self-image are important aspects of treatment, stopping weight loss or restoring weight takes precedence due to the severe physical consequences of anorexia nervosa.

Correct Answer: D

Rationale: Understanding the underlying pathology and therapeutic techniques ensures that nursing care is not only reactive but also preventative, reducing the risk of complications.