1.简单
Which of these is a live attenuated vaccine?
- AInactivated influenza injection
- BHepatitis B vaccine
- CMMR (measles, mumps and rubella)
- DTetanus toxoid
2.简单
Why is carbidopa combined with levodopa?
- AIt converts levodopa into dopamine inside the gut
- BIt stops levodopa turning into dopamine outside the brain
- CIt increases the breakdown of dopamine in the liver
- DIt blocks dopamine receptors to reduce nausea in the brain
3.简单
Adenosine is used mainly to:
- ATerminate supraventricular tachycardia
- BPrevent blood clots in atrial fibrillation
- CTreat ventricular fibrillation
- DRaise blood pressure in shock
4.中等
A patient taking levodopa finds that the drug works poorly after large meals. Which advice is most appropriate?
- ATake the drug only at bedtime
- BAvoid taking doses at the same time as high-protein meals
- CTake every dose with a large glass of milk and a protein snack
- DDouble the dose after each meal
5.中等
部分激动剂与大剂量完全激动剂同时给予。反应会怎样?
- A下降,因为部分激动剂与之竞争受体
- B与单用大剂量完全激动剂时完全相同
- C上升到超过完全激动剂的最大效应
- D加倍,因为两种药物都激活受体
6.中等
A patient must mix regular (soluble) insulin and NPH (isophane) insulin in one syringe. What is the correct order?
- ADraw up the clear regular insulin first, then the cloudy NPH insulin
- BShake both vials hard, then draw them up in any order
- CDraw up the cloudy NPH insulin first, then the clear regular insulin
- DDraw them up in separate syringes, then mix them in a cup
7.困难
Why is vancomycin given by mouth, not intravenously, for Clostridioides difficile infection?
- AIntravenous vancomycin causes C. difficile infection
- BOral vancomycin is absorbed into the blood better than IV vancomycin
- COral vancomycin is not absorbed, so it reaches high levels in the colon
- DThe oral form is cheaper but has the same effect as IV
8.困难
A patient on methadone is also prescribed diazepam for anxiety. What is the main safety concern?
- AAdditive sedation and respiratory depression
- BDiazepam blocks the effect of methadone completely
- CMethadone causes diazepam to be excreted very quickly
- DSevere hypertension from the combination
答案
- 1. C · MMR (measles, mumps and rubella)
- 2. B · It stops levodopa turning into dopamine outside the brain
- 3. A · Terminate supraventricular tachycardia
- 4. B · Avoid taking doses at the same time as high-protein meals
- 5. A · 下降,因为部分激动剂与之竞争受体
- 6. A · Draw up the clear regular insulin first, then the cloudy NPH insulin
- 7. C · Oral vancomycin is not absorbed, so it reaches high levels in the colon
- 8. A · Additive sedation and respiratory depression
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