实验室检查值与电解质练习卷（附答案）

实验室使用自己的参考范围将某项结果标为偏高，但该数值在你教科书的范围内。对这位患者应使用哪个范围？

1. A你能在任何资料中找到的最宽的范围
2. B你实习所在医院使用的范围
3. C教科书的范围，因为教科书是国家标准
4. D进行检测的实验室的参考范围

哪项实验室检查在急性胰腺炎时最典型地升高？

1. A糖化血红蛋白
2. B血清白蛋白
3. C血清脂肪酶
4. D血清肌钙蛋白

Which laboratory test best reflects the body's iron stores?

1. APlatelet count
2. BSerum ferritin
3. CSerum sodium
4. DSerum albumin

一名因房颤服用华法林的患者 INR 为 5.2，无出血。护士最好的措施是什么？

1. A给予双倍剂量
2. B建议患者从今天起不再吃绿叶蔬菜
3. C给予通常的剂量，一个月后复查
4. D暂停华法林剂量并通知开医嘱者

A urine culture is ordered for a patient with an indwelling urinary catheter. How should the nurse collect the sample?

1. AAspirate from the sampling port with a sterile syringe
2. BPour urine from the drainage bag into a sterile cup
3. CDisconnect the catheter from the tubing and let it drain
4. DRemove the catheter and culture the catheter tip

A week after a splenectomy, a patient's platelet count is 650 × 10³/µL. What is the best interpretation?

1. AA sign of new leukemia that needs immediate chemotherapy
2. BAn expected rise after splenectomy that increases clot risk
3. CA laboratory error, because platelets fall after splenectomy
4. DA sign of iron overload from the surgery and transfusion

患者早晨服药后 2 小时抽取的血锂水平为 1.0 mEq/L，开医嘱者打算增加剂量。护士应指出什么？

1. A水平已达中毒，因此应永久停用锂盐
2. B血锂水平可在一天中任何时间采集而不影响结果
3. C水平太低，因此大幅增加显然是安全的
4. D样本是在服药后太早采集的，因此不是有效的水平

A patient with heavy alcohol use and a poor diet has a hemoglobin of 10.1 g/dL (101 g/L), an MCV of 110 fL and a low red cell folate. Which explanation fits best?

1. AIron deficiency from slow, chronic bleeding in the gut
2. BFolate deficiency, made worse by a direct alcohol effect
3. CAnemia caused by long-standing chronic kidney disease
4. DThalassemia trait inherited from one of the parents