For staging of head and neck cancer, which letter indicates whether cancer has spread to another part of the body?

A. Cheyne-Stokes breathing is characterized by periods of deep breathing followed by apnea and is often associated with conditions like heart failure or brain injury, not diabetic ketoacidosis (DKA).
B. Acetone odor to breath is a hallmark sign of diabetic ketoacidosis. The body breaks down fats for energy, producing ketones, which are released in the breath, giving it a fruity or acetone-like odor.
C. A blood glucose level below 40 mg/dL would indicate hypoglycemia, not DKA. In DKA, blood glucose levels are typically elevated (above 250 mg/dL).
D. Malignant hypertension refers to extremely high blood pressure with organ damage, and is not directly related to diabetic ketoacidosis.

A. Increase carbohydrate intake.: This is incorrect. Cushing’s disease is characterized by excessive cortisol, which can lead to increased blood glucose levels, making carbohydrate intake less desirable. Clients with Cushing's disease often need to manage their blood sugar levels, so they should not increase carbohydrates indiscriminately.
B. Limit intake of potassium-rich foods.: This is incorrect. In Cushing’s disease, elevated cortisol levels can lead to potassium depletion, so clients should actually increase their intake of potassium-rich foods to help counteract the effects of low potassium, not limit them.
C. Restrict sodium intake.: This is correct. Cushing’s disease often results in fluid retention and hypertension due to increased cortisol and aldosterone levels. Restricting sodium helps manage these symptoms and reduces the risk of complications such as edema and high blood pressure.
D. Decrease protein intake.: This is incorrect. While protein breakdown is a feature of Cushing's disease, protein intake should not necessarily be decreased. Adequate protein intake is important to prevent muscle wasting, a common issue in clients with Cushing’s disease.