实验室检查值与电解质练习卷（附答案）

Which blood group is the universal donor for red blood cells in an emergency?

1. AGroup A, Rh negative
2. BGroup B, Rh positive
3. CGroup AB, Rh positive
4. DGroup O, Rh negative

A raised lymphocyte count is most typical of:

1. AViral infections
2. BIron deficiency
3. CAllergic asthma
4. DBacterial abscesses

At what time of day is serum cortisol normally highest?

1. AAround midnight
2. BLate afternoon
3. CEarly morning
4. DAfter the evening meal

一名服用地高辛的患者血药水平为 2.8 ng/mL，心率 52 次/分。护士最好的措施是什么？

1. A给予双倍剂量以纠正心律
2. B暂停该剂量并通知开医嘱者
3. C给药，因为心率高于 50 次/分
4. D给药，一个月后复查血药水平

静脉注射葡萄糖酸钙如何帮助重度高钾血症患者？

1. A增加肾脏对钾的排泄
2. B稳定心肌细胞膜，但不降低钾
3. C使钾从血液转移到细胞内
4. D在肠道中结合钾，使其随粪便排出

哪一组表现符合高钙血症？

1. A仅有口渴和非常稀的尿液
2. B仅有 T 波高尖和肌无力
3. C手足搐搦、肌肉痉挛和 Chvostek 征阳性
4. D便秘、疲劳、意识模糊和肾结石

Ten days after chemotherapy, a patient has a platelet count of 9 × 10³/µL and reports a sudden severe headache and blurred vision. What is the priority?

1. AAssess neurological status and report it at once as possible brain bleeding
2. BEncourage the patient to drink more fluids and check the blood pressure later
3. CDim the lights and encourage rest, as headaches are common after chemotherapy
4. DGive acetaminophen (paracetamol) for the headache and reassess in 1 hour

A patient's bedside glucose meter shows "HI" (above its measuring range). The patient is drowsy. What should the nurse do?

1. AAssume the meter is broken and give the usual insulin dose
2. BRecord "HI" and repeat the meter test at the next scheduled time
3. CGive oral glucose in case the reading is wrong and the patient is low
4. DSend a venous sample to the lab and inform the provider at once