患者女性,54岁,因头痛、恶心、呕吐10余天入院,发病期间尿量可。临床诊断:①慢性肾功能衰竭尿毒症期;②高血压病(3级,极高危组)。入院时心电图(ECG)图1:窦性心律,QRS:V_1□V_2呈rS型,ST:Ⅰ、Ⅱ、Ⅲ、aVL、aVF、V_4□V_6呈水平型延长略下移;T:Ⅰ、Ⅱ、aVL、aVF、V_4□V_6倒置,QTc474ms。ECG诊断:①窦性心律;②QT间期延长;③ST-T改变(提示低血钙ECG表现)。次日15:10突然出现全身不适,胸痛、腹痛、恶心、 Female patient, 54 years old, because of headache, nausea, vomiting more than 10 days admitted to the hospital, during the urine can be. Clinical diagnosis: ① chronic renal failure uremia; ② hypertension (3, very high risk group). At admission ECG (ECG) Figure 1: sinus rhythm, QRS: V_1 □ V_2 showed rS type, ST: Ⅰ, Ⅱ, Ⅲ, aVL, aVF, V_4 □ V_6 horizontal extension slightly down; T: Ⅰ, Ⅱ , AVL, aVF, V_4 □ V_6 inverted, QTc474ms. ECG diagnosis: ① sinus rhythm; ② QT interval prolongation; ③ ST-T changes (suggesting hypocalcemia ECG performance). The next day 15:10 Sudden onset of general malaise, chest pain, abdominal pain, nausea,