Which finding(s) would the nurse expect to assess on a patient with a diagnosis of diabetic ketoacidosis (DKA) recently admitted to the emergency department? (Select all that apply)

Rationale: A. Deep, rapid breathing (Kussmaul respirations) is a compensatory response to metabolic acidosis caused by excess ketone accumulation. By breathing faster and deeper, the patient exhales more carbon dioxide, which helps reduce acid levels in the blood. This finding indicates severe acidosis and is a classic, high-priority sign in DKA. B. Decreased urine output occurs as DKA progresses due to severe dehydration. Initially, hyperglycemia causes osmotic diuresis, leading to excessive urination. Over time, profound fluid loss results in hypovolemia, decreased renal perfusion, and ultimately reduced urine output, making this an expected assessment finding on admission. C. Elevated blood glucose level is a defining characteristic of DKA. Insulin deficiency prevents glucose from entering the cells, causing blood glucose to rise significantly (often >250 mg/dL). This hyperglycemia contributes to dehydration, electrolyte imbalances, and worsening acidosis. D. Increase in pH is incorrect because DKA causes metabolic acidosis, leading to a decreased pH (typically <7.35). The presence of ketone bodies lowers the blood pH, which is responsible for many of the patient’s clinical manifestations. E. Acetone (fruity) breath results from the accumulation of ketones, particularly acetone, which is exhaled through the lungs. This distinct odor is a classic assessment finding and helps differentiate DKA from other hyperglycemic conditions such as hyperosmolar hyperglycemic syndrome (HHS).