ใบงาน เภสัชวิทยา พร้อมเฉลย

Chlordiazepoxide is commonly used to manage:

1. AOpioid overdose
2. BMigraine prevention
3. CBipolar mania
4. DAlcohol withdrawal

Psyllium (ispaghula husk) is which type of laxative?

1. AStimulant
2. BBulk-forming
3. CStool softener
4. DOsmotic

What is a prodrug?

1. AA drug that has passed all clinical trials
2. BA drug that prevents or reverses the effect of another drug in the body
3. CA drug that is inactive until the body converts it into its active form
4. DA drug that is given before surgery

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. BBulk-forming fibre alone, with fluid intake restricted
3. CAn antidiarrhoeal drug at night to slow the gut
4. DA stimulant laxative such as senna, often with a stool softener

How are most medication doses for children calculated?

1. ABy giving half of the adult dose to all children under 12
2. BBy the child's height alone
3. CBy body weight in kilograms, or sometimes body surface area
4. DBy the child's age in years only

Which antihypertensive class can raise blood glucose and uric acid levels, sometimes triggering gout?

1. AAlpha-1 blockers
2. BThiazide diuretics
3. CAngiotensin II receptor blockers
4. DACE inhibitors

Before starting rituximab, patients are tested for hepatitis B. Why?

1. ARituximab can reactivate hepatitis B and cause liver failure
2. BRituximab is a vaccine against hepatitis B
3. CRituximab is made from the hepatitis B virus
4. DHepatitis B infection makes rituximab completely ineffective

A patient with latent tuberculosis feels well and is not infectious. Why is treatment such as isoniazid still offered?

1. ATo cure an active lung infection
2. BTo stop the patient spreading TB at the moment
3. CTo produce a negative skin test quickly
4. DTo prevent progression to active TB later