ใบงาน เภสัชวิทยา พร้อมเฉลย

อะโทรพีนปิดกั้นตัวรับชนิดใด?

1. Aตัวรับเบต้า-1 อะดรีเนอร์จิก
2. Bตัวรับนิโคตินิกที่รอยต่อระหว่างประสาทกับกล้ามเนื้อ
3. Cตัวรับฮิสตามีน H1
4. Dตัวรับมัสคารินิกของอะเซทิลโคลีน

ผลข้างเคียงของมอร์ฟีนข้อใดแทบไม่หายไปแม้ใช้ต่อเนื่อง?

1. Aง่วงซึม
2. Bคัน
3. Cคลื่นไส้
4. Dท้องผูก

With patient-controlled analgesia (PCA), who should press the button to give a dose?

1. AAny visitor who thinks the patient is in pain
2. BOnly the patient
3. CA family member when the patient is asleep
4. DThe nursing assistant at set times

A patient takes isoniazid. Which advice is most important?

1. ATake it with antacids to protect the stomach from irritation
2. BStop the drug when the cough improves
3. CAvoid alcohol and report jaundice, dark urine or poor appetite
4. DExpect the urine to turn orange

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

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

Why is a spacer recommended with a metered-dose inhaler?

1. AIt turns the inhaler into a nebuliser
2. BMore drug reaches the lungs and less stays in the mouth
3. CIt removes the need to shake the inhaler
4. DIt doubles the dose of drug released by each puff of the inhaler

A patient with epilepsy needs pain relief. Why is tramadol used with caution?

1. AIt speeds up the metabolism of all antiepileptic drugs
2. BIt lowers the seizure threshold
3. CIt always causes respiratory arrest in epilepsy
4. DIt causes a sharp rise in blood glucose

Why is adenosine used with caution in patients with asthma?

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