Which of the following lab findings do you expect to see in a patient with diabetic ketoacidosis (DKA)?
Explanation & Rationale
A. pH level less than 7.30 is correct because DKA causes metabolic acidosis due to the accumulation of ketone bodies. The normal blood pH is 7.35–7.45, and in DKA, the pH typically drops below 7.30, indicating acidemia. This acid-base disturbance is a hallmark of DKA and requires urgent management. B. HCO3 levels greater than 22 is incorrect because in DKA, bicarbonate levels are usually decreased (<18 mEq/L) as it is consumed in buffering excess hydrogen ions from ketone production. Elevated bicarbonate would not be expected in metabolic acidosis. C. Hematuria is incorrect because blood in the urine is not a characteristic finding in DKA. While osmotic diuresis can occur, hematuria is not typically associated with DKA unless there is a separate renal pathology. D. Glucose levels less than 100 is incorrect because DKA is characterized by hyperglycemia, usually with blood glucose levels greater than 250 mg/dL. Glucose levels below 100 would be inconsistent with this condition.