一贲门失弛缓症患者,病史10余年,近1个月症状加重,反复呕吐,其治疗方法为()
A.少食多餐
B.饭后散步
C.应用平滑肌松弛药
D.扩张疗法
E.食管下段及贲门肌层切开
参考答案:E
A client with a history of heart failure is examined in the outpatient department to investigate the recent onset of peripheral edema and increased shortness of breath. Physical findings include bilateral crackles, a third heart sound (S3), distended neck veins, elevated blood pressure, and pitting edema of the ankles. The nurse documents the severity of pitting edema as +1. What is the best description of this type of edema()
A. Barely detectable depression when the thumb is released from the swollen area; normal foot and leg contours.
B. Detectable depression of less than 5 mm when the thumb is released from the swollen area; normal foot and leg contours.
C. A 5-to 10-mm depression when the thumb is released from the swollen area; foot and leg swelling.
D. A depression of more than 1 cm when the thumb is released from the swollen area; severe foot and leg swelling.
()过小,由于焊接区金属的塑性变形范围及变形程度不足,造成因电流密度过大而引起加热速度大于塑性环扩展速度,从而产生严重喷溅。
A.焊接时间
B.焊接电流
C.焊接压力
D.电弧电压