食管胃底静脉曲张破裂大出血时,首先采取的治疗措施是()
A.紧急三腔二囊管压迫止血
B.急诊断流手术
C.急诊分流手术
D.急诊贲门周围血管离断术
E.内科保守治疗
参考答案:A
用于砌筑结构的石材强度等级应符合设计要求,设计无要求时不得小于()。
A.30MPa
B.20MPa
C.l5MPa
D.25MPa
Which assessment finding would lead the nurse to suspect dehydration in a preterm neonate()
A. Bulging fontanels.
B. Excessive weight gain.
C. Urine specific gravity below 1.012.
D. Urine output below 1 mL/hour.