跌打损伤，瘀血留于胁下，痛不可忍者，治当首选（）。 A.血府逐瘀汤 B.七厘散 C.

是重要的核工业原料，在自然界的含量很低，它的浓缩一直为国际社会所关注。下面列出该原子核内中子数与核外电子数之差的数据正确的是

A．51

B．92

C．143

D．235

患者男性，67岁，排尿不畅1年，夜尿3次，伴尿频。无尿痛和肉眼血尿。否认糖尿病、高血压、脑血管意外病史。体检：体温36.6℃，脉搏88次／分，呼吸20次／分，血压130/80mmHg。

DRE检查示前列腺增大，中央沟变浅，未扪及硬结，前列腺超声：前列腺50ml，外腺区未见低回声区，PSA3.0ng/ml，目前不考虑哪些诊断（）。

A.慢性前列腺炎

B.前列腺癌

C.前列腺增生

D.良性前列腺增生伴发前列腺癌

E.诊断未明确，需进一步检查

该试验的灵敏度为（）。

A．25%

B．50%

C．60%

D．70%

E．80%

A 24-year-old client on the labor unit is being coached in the Lamaze method by her husband. On assessment, the nurse finds the client to be 5 cm dilated, 90% effaced, at +1 station with contractions coming every 2 to 3 minutes and lasting 35 to 40 seconds. The client has asked for pain relief. What’s the nurse’s best action（）

A. Check maternal blood pressure and pulse and fetal heart rate in response to contractions.

B. Realize that it’s too early to give pain medication, and encourage the husband to continue with the Lamaze coaching.

C. Arrange for a sonogram to determine fetal position.

D. Perform a vaginal examination to determine dilation, effacement, and station.