ورقة عمل علم الأدوية مع الإجابات

Which herbal product is commonly taken for sleep and can add to the effect of sedatives?

1. APeppermint
2. BGinger
3. CCranberry
4. DValerian

How does rasagiline help in Parkinson's disease?

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

Which opioid receptor is mainly responsible for the pain relief and respiratory depression of morphine?

1. ADelta receptor
2. BKappa receptor
3. CMu receptor
4. DNicotinic receptor

A child weighing 20 kg is prescribed a drug at 15 mg/kg per dose. What is the dose?

1. A300 mg
2. B35 mg
3. C150 mg
4. D3000 mg

In which patient is bupropion contraindicated?

1. AA patient with seasonal allergies
2. BA patient with a seizure disorder or an eating disorder
3. CA patient with high blood cholesterol and a family history of it
4. DA patient who wants to stop smoking

A woman taking tamoxifen should report which symptom promptly?

1. AMild tiredness in the afternoon
2. BMild hot flushes, especially at night, in the first months
3. CSlightly dry skin
4. DUnusual vaginal bleeding or a painful swollen leg

A patient receiving a phenylephrine infusion has a rise in blood pressure and a fall in heart rate. What is the best explanation?

1. APhenylephrine stimulates muscarinic receptors
2. BThe fall in heart rate shows phenylephrine toxicity of the AV node
3. CAlpha-1 vasoconstriction raises blood pressure and causes reflex bradycardia
4. DPhenylephrine directly blocks beta-1 receptors in the heart's conduction system

A patient with severe liver cirrhosis takes oral propranolol, a drug with a high first-pass metabolism. What effect is expected?

1. AThe drug is excreted faster by the kidney, so it works for a shorter time
2. BLess drug is absorbed from the gut, so a higher dose is needed
3. CThe first-pass effect increases, so the drug becomes inactive
4. DMore drug reaches the circulation, so a lower dose may be needed