一位第一型糖尿病患出現糖尿病酮酸中毒（DKA）跡象。哪項實驗室數據可證實此診斷？
A nurse is caring for a client with type 1 diabetes mellitus who is showing signs of DKA. Which laboratory finding confirms this diagnosis?
- ABlood pH of 7.25✓ 正解血液pH值為7.25
- BSerum potassium of 4.0 mEq/L血清鉀濃度為4.0 mEq/L
- CSerum bicarbonate of 28 mEq/L血清碳酸氫根濃度為28 mEq/L
- DBlood glucose of 150 mg/dL血糖值為150 mg/dL
糖尿病酮酸中毒（DKA）是第一型糖尿病常見的嚴重併發症。其診斷的核心指標為代謝性酸中毒，表現為 pH 值低於 7.30，且常伴隨高血糖（通常 >250 mg/dL）與酮體陽性。pH 7.25 明顯處於酸中毒狀態，結合臨床表現即可確診。護理師需監測這些實驗室數據，以評估治療（如胰島素輸注與補液）的療效。
Diabetic ketoacidosis (DKA) is a common, serious complication of type 1 diabetes. The core diagnostic indicator is metabolic acidosis, manifested as a pH below 7.30, typically accompanied by hyperglycemia (usually >250 mg/dL) and positive ketones. A pH of 7.25 clearly indicates acidosis, and combined with the clinical presentation confirms the diagnosis. The nurse must monitor these laboratory values to evaluate the response to therapy (such as insulin infusion and fluid replacement).