26.胃十二指腸潰瘍病人突然出現(xiàn)嘔血，面色蒼白，出冷汗，脈搏100次／分，血壓100／80mmHg，估計病人的出血量大約為(      )

A.50ml                                                           B.200ml

C.400ml                                                         D.800ml

27.乳癌病人術(shù)后患肢功能鍛煉的方法正確的是(      )

A.術(shù)后6小時肘部活動                                   B.術(shù)后3~5天腕部活動

C.術(shù)后7天肩部活動                                      D.術(shù)后10天患肢負重活動

28.燒傷病人補液首選的晶體溶液是(      )

A.生理鹽水                                                    B.平衡鹽溶液

C.5％葡萄糖鹽水                                           D.5％NaHCO₃溶液

29.pH7.31，PaCO₂60mmHg，PaO₂85mmHg，SB23mmol／L，此血氣結(jié)果提示(      )

A.代謝性堿中毒                                             B.呼吸性堿中毒

C.代謝性酸中毒                                             D.呼吸性酸中毒

30.破傷風(fēng)病人最早出現(xiàn)的癥狀是(      )

A.張口困難                                                    B.牙關(guān)緊閉

C.苦笑面容                                                     D.角弓反張