1.简单
In iron-deficiency anemia, the transferrin saturation is usually:
- AHigh
- BLow
- CVariable
- DNormal
2.简单
Why is glucose normally absent from the urine?
- AGlucose is changed into ketones before it reaches the urine
- BThe tubules reabsorb all filtered glucose at normal blood levels
- CThe glomeruli do not filter glucose out of the blood at any level
- DThe bladder lining breaks down any glucose that reaches the urine
3.简单
Which laboratory test best reflects the body's iron stores?
- ASerum albumin
- BSerum ferritin
- CPlatelet count
- DSerum sodium
4.中等
Apart from the lithium level, which tests are monitored regularly in long-term lithium therapy?
- ALiver enzymes and serum amylase
- BKidney function and thyroid function
- CTroponin and creatine kinase (CK)
- DINR and the platelet count
5.中等
A young adult with new diabetes has a very low C-peptide level. What does this suggest?
- AThe kidneys are excreting all of the patient's insulin in urine
- BThe pancreas is making very little insulin, as in type 1 diabetes
- CThe patient has high insulin resistance, as in type 2 diabetes
- DThe patient is injecting too much insulin and needs a lower dose
6.中等
A patient is starting dabigatran, a direct oral anticoagulant. Which laboratory test is most important to review before the first dose?
- AINR, to set the dose of the anticoagulant
- BLipase, to rule out an inflamed pancreas first
- CTSH, to rule out an overactive thyroid gland
- DKidney function (creatinine clearance)
7.困难
手术后,一名接受大量低渗静脉液体的患者出现头痛、恶心和意识模糊。哪项结果最能解释这一点?
- A钙 9.4 mg/dL(2.35 mmol/L)
- B钠 126 mEq/L
- C钾 4.2 mEq/L
- D血糖 110 mg/dL(6.1 mmol/L)
8.困难
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?
- AFolate deficiency, made worse by a direct alcohol effect
- BIron deficiency from slow, chronic bleeding in the gut
- CThalassemia trait inherited from one of the parents
- DAnemia caused by long-standing chronic kidney disease
答案
- 1. B · Low
- 2. B · The tubules reabsorb all filtered glucose at normal blood levels
- 3. B · Serum ferritin
- 4. B · Kidney function and thyroid function
- 5. B · The pancreas is making very little insulin, as in type 1 diabetes
- 6. D · Kidney function (creatinine clearance)
- 7. B · 钠 126 mEq/L
- 8. A · Folate deficiency, made worse by a direct alcohol effect
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