Phiếu bài tập Dược lý học có đáp án

Benzodiazepine như diazepam hoạt động bằng cách tăng cường tác dụng của chất dẫn truyền thần kinh nào?

1. AGlutamate
2. BGABA
3. CNoradrenaline
4. DSerotonin

A patient taking furosemide is advised to eat potassium-rich foods. Which food is a good choice?

1. AEgg whites
2. BBananas
3. CWhite rice
4. DButter

How does rasagiline help in Parkinson's disease?

1. AIt inhibits MAO-B, so brain dopamine is broken down more slowly
2. BIt blocks acetylcholine receptors in the gut
3. CIt blocks dopamine receptors in the brain
4. DIt is converted directly into dopamine inside brain neurones

A patient takes cholestyramine. How should other oral medicines be timed?

1. ATiming does not matter, as cholestyramine is not absorbed
2. BTake them all at the same time as cholestyramine
3. CMix them into the cholestyramine drink so they are taken together
4. DTake them 1 hour before or several hours after cholestyramine

Độ thanh thải của một thuốc mô tả điều gì?

1. ALượng thuốc được loại bỏ sau một lần lọc máu
2. BPhần liều được hấp thu
3. CThể tích huyết tương được làm sạch thuốc trong một đơn vị thời gian
4. DThời gian cần để thuốc biến mất hoàn toàn khỏi huyết tương

Which approach is usually recommended to prevent constipation in a patient on regular opioids?

1. ANo laxative until the patient has not opened the bowels for a week
2. BA stimulant laxative such as senna, often with a stool softener
3. CBulk-forming fibre alone, with fluid intake restricted
4. DAn antidiarrhoeal drug at night to slow the gut

A patient on long-term prednisolone has been vomiting for two days and could not take her tablets. She is now hypotensive and confused, with low sodium and high potassium. What is the most urgent treatment?

1. AIV furosemide
2. BIV hydrocortisone and IV fluids
3. COral prednisolone with a glass of water
4. DIV insulin with glucose only

A malnourished patient with low serum albumin shows nystagmus and unsteady gait. Her total phenytoin level is within range. What is the most likely explanation?

1. ALow albumin makes phenytoin bind more tightly, so the drug is less active
2. BThe total level is high, but the laboratory is wrong
3. CMore phenytoin is unbound when albumin is low, so free levels rise
4. DLow albumin speeds up phenytoin metabolism