实验室检查值与电解质练习卷（附答案）

What is the main role of fibrinogen in the blood?

1. AIt breaks down clots once the bleeding has stopped
2. BIt carries oxygen from the lungs to the body tissues
3. CIt is converted to fibrin, which forms the mesh of a clot
4. DIt transports iron from the gut to the bone marrow

In a standard 2-hour oral glucose tolerance test, what does the patient do?

1. AReceives an insulin injection, and glucose is checked each hour
2. BEats a normal meal, and glucose is checked once later that evening
3. CFasts for 3 days, and glucose is checked every morning before breakfast
4. DDrinks a measured glucose solution, and glucose is checked 2 hours later

Which hemoglobin value in an adult man is within the typical reference range?

1. A20.5 g/dL (205 g/L)
2. B5.5 g/dL (55 g/L)
3. C9.0 g/dL (90 g/L)
4. D15.0 g/dL (150 g/L)

A patient on hemodialysis has an arteriovenous (AV) fistula in the left arm. Where should the nurse draw routine blood samples?

1. AFrom the left hand
2. BFrom the left wrist
3. CFrom the right arm
4. DFrom the fistula

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

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

A patient on peritoneal dialysis notices that the drained fluid is cloudy and has abdominal pain. What should the nurse do?

1. ASend the fluid for cell count and culture and report it
2. BAdd more glucose to the next bag to clear the fluid
3. CStop dialysis for a week and recheck the fluid later
4. DRecord it as normal and continue the usual exchanges

A patient admitted with heavy alcohol use and malnutrition has a glucose of 52 mg/dL (2.9 mmol/L) and low magnesium. Which prescribed treatment should be given before the IV glucose?

1. AIV thiamine
2. BIV potassium
3. CIV insulin
4. DOral iron

一名转移性乳腺癌患者钙为 13.2 mg/dL（3.3 mmol/L），意识模糊并便秘。护士预期会首先开始哪种处方治疗？

1. A静脉输注 0.9% 氯化钠
2. B噻嗪类利尿剂
3. C口服钙补充剂
4. D严格卧床休息