A nurse is teaching a client about skin cancer prevention. Which of the following statements by the client indicates an understanding of the teaching?

A. 0.45% saline. This is a hypotonic solution, which may be used later in diabetic ketoacidosis (DKA) management, but it is not appropriate for initial fluid resuscitation as it does not rapidly expand intravascular volume.
B. NPH insulin. NPH is an intermediate-acting insulin and is not used for continuous infusion. In DKA, rapid insulin correction is needed, typically with a short-acting insulin like regular insulin.
C. 0.9% normal saline. This isotonic fluid is the first-line choice for fluid replacement in clients with DKA. It helps restore circulating volume and correct dehydration quickly, which is a critical initial intervention.
D. Glargine insulin. Glargine is a long-acting insulin and not suitable for IV infusion. DKA requires the use of short-acting insulin (e.g., regular insulin) administered via IV infusion to correct hyperglycemia and acidosis.

A. "The proxy should manage legal issues for the client." Legal matters are outside the scope of a health care proxy’s role. The proxy is authorized only to make medical decisions and does not handle legal or court-related concerns on behalf of the client.
B. "The proxy can make treatment decisions if the client is under anesthesia." The health care proxy is activated when the client is temporarily or permanently incapacitated, such as during surgery under anesthesia. At that point, the proxy can make treatment decisions aligned with the client’s values and previously expressed wishes.
C. "The proxy can make financial decisions if the need arises." Financial decisions are the responsibility of a financial power of attorney, not a health care proxy. A DPAHC limits the proxy’s authority strictly to medical and treatment-related decisions.
D. "The proxy should make health care decisions for the client regardless of the client's ability to do so." The health care proxy is not active while the client is competent and able to make decisions. The proxy only assumes responsibility when the client lacks decision-making capacity due to illness, unconsciousness, or cognitive impairment.