ใบงาน เภสัชวิทยา พร้อมเฉลย

Celecoxib selectively inhibits which enzyme?

1. ALipoxygenase
2. BPhospholipase A2
3. CCyclo-oxygenase-1 (COX-1)
4. DCyclo-oxygenase-2 (COX-2)

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

1. AWhite rice
2. BBananas
3. CEgg whites
4. DButter

What is the normal serum sodium range in adults?

1. A95–105 mmol/L
2. B150–165 mmol/L
3. C3.5–5.0 mmol/L
4. D135–145 mmol/L

Why is simvastatin traditionally taken in the evening?

1. AIt is inactivated by sunlight during the day
2. BIt is short-acting, and cholesterol synthesis peaks at night
3. CIt must be taken with the largest meal of the day
4. DIt causes too much drowsiness to be taken in the morning

A patient receives lactulose for hepatic encephalopathy. Which finding shows that it is working?

1. AHigher blood ammonia with improved appetite
2. BTen watery stools a day and a low serum potassium
3. CNo bowel movement for three days, with less confusion than before
4. DBetter alertness and orientation, with two to three soft stools a day

A 19-year-old starts an SSRI for depression. Which is most important for the nurse to monitor during the first weeks?

1. AHearing loss and tinnitus
2. BNew or worsening suicidal thoughts or agitation
3. CBlood glucose before every meal and at bedtime
4. DDaily bowel movements only

Why is adenosine used with caution in patients with asthma?

1. AIt can cause bronchospasm
2. BIt is broken down too slowly in asthma
3. CIt causes severe hypertension in asthma
4. DIt reduces the effect of inhaled steroids

A patient on digoxin is started on amiodarone. What change should the nurse expect?

1. ADigoxin levels rise, so the digoxin dose is often reduced
2. BNo interaction is expected
3. CAmiodarone levels fall to zero
4. DDigoxin levels fall sharply, so the digoxin dose is doubled