尿淀粉酶正常值参考范围是

A:速率法80~220U/L B:速率法100~1200U C:速率法180~220U/L D:碘-淀粉比色法100~1200U E:碘-淀粉比色法80~220U/L

血清淀粉酶正常值参考范围是

A:速率法80~220U/L B:速率法100~1200U C:速率法180~220U/L D:碘-淀粉比色法100~1200U E:碘-淀粉比色法80~220U/L

病历：患者，男性，25岁。以饮酒后左上腹疼痛伴恶心,呕吐8小时就诊。该患者腹痛呈持续性刀割样疼痛，并向左腰背部放射，呕吐后疼痛不缓解。查体：急性痛苦面容，大汗淋漓，左上腹压痛明显。检验血淀粉酶明显高于正常。

提问：急性胰腺炎患者淀粉酶测定下列各项中正确的是

A:血淀粉酶在起病后2~12小时开始升高 B:尿淀粉酶升高比血淀粉酶晚 C:血淀粉酶持续3~5天 D:尿淀粉酶持续7~14天 E:淀粉酶的高低一定能反映病情的轻重 F:尿淀粉酶升高比血淀粉酶早

自身输血提供了大量血液的来源，可以有效缓解血液紧张的状况，但对患者总血容量的估计和可采集血液剂量的计算至关重要。

有关血液采集量理论计算公式BL=2BV(HO-Hf)/(HO+Hf)解释不正确的是

A:BL为血液采集量 B:BV为血液采集前患者血容量 C:HO为血液采集前患者血细胞比容值 D:血液采集后期望血细胞比容值一般为0.35 E:Hf为血液采集后期望血细胞比容值

自身输血提供了大量血液的来源，可以有效缓解血液紧张的状况，但对患者总血容量的估计和可采集血液剂量的计算至关重要。

有关血液采集量理论计算公式BL=2BV(HO-Hf)/(HO+Hf)解释正确的是

A:BL为血液采集量 B:BV为血液采集前患者血容量 C:HO为血液采集前患者血细胞比容值 D:血液采集后期望血细胞比容值一般为0.35 E:Hf为血液采集后期望血细胞比容值

自身输血提供了大量血液的来源，可以有效缓解血液紧张的状况，但对患者总血容量的估计和可采集血液剂量的计算至关重要。

有关血液采集量理论计算公式BL=2BV(HO-Hf)/(HO+Hf)解释错误的是

A:BL为血液采集量 B:BV为血液采集前患者血容量 C:HO为血液采集前患者血细胞比容值 D:血液采集后期望血细胞比容值一般为0.35 E:Hf为血液采集后期望血细胞比容值

某男性患者，26岁，以饮酒后左上腹疼痛伴恶心、呕吐8小时就诊。该患者腹痛呈持续性刀割样疼痛，并向左腰背部放射，呕吐后疼痛不缓解。查体：急性痛苦面容，大汗淋漓，左上腹压痛明显。检验血淀粉酶明显高于正常。

急性胰腺炎患者淀粉酶测定下列各项中正确的是

A:血淀粉酶在起病后6～12小时开始升高 B:尿淀粉酶升高比血淀粉酶晚 C:血淀粉酶持续3～5天 D:尿淀粉酶持续7～14天 E:淀粉酶的高低一定能反映病情的轻重 F:尿淀粉酶升高比血淀粉酶早

某男性患者，26岁，以饮酒后左上腹疼痛伴恶心、呕吐8小时就诊。该患者腹痛呈持续性刀割样疼痛，并向左腰背部放射，呕吐后疼痛不缓解。查体：急性痛苦面容，大汗淋漓，左上腹压痛明显。化验血淀粉酶明显高于正常。

急性胰腺炎患者淀粉酶测定下列各项中正确的是

A:血淀粉酶在起病后6～12小时开始升高 B:尿淀粉酶升高比血淀粉酶晚 C:血淀粉酶持续3～5天 D:尿淀粉酶持续7～14天 E:淀粉酶的高低一定能反映病情的轻重 F:尿淀粉酶升高比血淀粉酶早

Dangers Await Babies with Altitude

    Women who live in the world’s highest communities tend to give birth to underweight babies, a new study suggests. These babies may grow into adults with a high risk of heart disease and strokes.¹

    Research has hinted that newborns in mountain communities are lighter than average. But it wasn’t clear whether this is due to reduced oxygen levels at high altitudes or because their mothers are under-nourished — many people who live at high altitudes are relatively poor compared with those living lower down.

    To find out more, Dino Giussani and his team at Cambridge University studied the records of 400 births in Bolivia during 1997 and 1998. The babies were bom in both rich and poor areas of two cities: La Paz and Santa Cruz. La Paz is the highest city in the world, at 3.65 kilometers above sea level, while Santa Cruz is much lower, at 0.44 kilometers.

    Sure enough, Giussani found that the average birthweight of babies in La Paz was significantly lower than in Santa Cruz. This was true in both high and low-income families. Even babies bom to poor families in Santa Cruz were heavier on average than babies born to wealthy families in lofty La Paz. “We were very surprised by this result,” says Giussani.

    The results suggest that babies bom at high altitudes are deprived of² oxygen before birth. “This may trigger the release or suppression of hormones that regulate growth of the unborn child,³ ”says Giussani.

    His team also found that high-altitude babies tended to have relatively larger heads compared with their bodies⁴. This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body.⁵

    Giussani wants to find out if such babies have a higher risk of disease in later life. People born in La Paz might be prone to heart trouble in adulthood, for example. Low birthweight is a risk factor for coronary heart disease. And newborns with a high ratio of head size to body weight are often predisposed to high blood pressure and strokes in later life.

词汇：

altitude / ’æltɪtju:d /n．维度，（海拔）高度

stroke /strəʊk / n．中风

birthweight n．出生体重

coronary / ’kɒrənəri /adj．冠状的

under-nourished adj．营养不足的

underweight /’ʌndəweɪt / adj．重量不足的

hint / hɪnt / vt．暗示

hormone /’hɔ:məʊn / n．荷尔蒙

fetus / ’fi:təs / n．胚胎

注释：

1．... grow into adults with a high risk of heart disease and strokes：……长大成人后得心脏病和中风的风险很大

2．... are deprived of ...：被剥夺了……，缺乏……

3．This may trigger the release or suppression of hormones that regulate growth of the unborn child：这可能会触发调节未出生儿成长的荷尔蒙的释放或抑制。这里的release是名词。

4．relatively larger heads compared with their bodies：相对身体来说较大的头部

5．... a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body：……一个缺乏氧的胚胎会首先把充氧的血液输送到脑部，然后才送到身体的其他部位。starved of是分词短语，修饰fetus, in preference to表示的是第二位的选择，如：I chose to study English in preference to Russian in university.读大学时，我选了英语，而不是俄语。

Giussani did not expect to find that the weight of a baby had little to do with the financial conditions of the family he was bom into.

A:Right  B:Wrong C:Not mentioned