ใบงาน เภสัชวิทยา พร้อมเฉลย

What is the normal serum potassium range in adults?

1. A1.5–2.5 mmol/L
2. B3.5–5.0 mmol/L
3. C6.0–7.5 mmol/L
4. D135–145 mmol/L

On the WHO analgesic ladder, which drugs form the first step?

1. AStrong opioids such as morphine given intravenously
2. BLocal anaesthetic nerve blocks for all patients
3. CNon-opioids such as paracetamol and NSAIDs
4. DWeak opioids such as codeine or tramadol, used on their own

How is pernicious anaemia usually treated?

1. AWith blood transfusions every month
2. BWith oral iron tablets for three months, then stopping
3. CWith folic acid alone
4. DWith vitamin B12 injections, usually for life

How does sucralfate help a peptic ulcer heal?

1. AIt kills Helicobacter pylori directly
2. BIt blocks histamine H2 receptors in the stomach
3. CIt neutralises acid by releasing bicarbonate
4. DIt forms a protective coating over the ulcer base

Which adverse effects are typical of donepezil?

1. ADry mouth, constipation and a fast heart rate
2. BNausea, diarrhoea and a slow heart rate
3. CHair loss and skin pigmentation
4. DWeight gain and high blood glucose

ไอพราโทรเปียมเป็นยาขยายหลอดลมที่ใช้ใน COPD ออกฤทธิ์อย่างไร?

1. Aกระตุ้นตัวรับอะดรีเนอร์จิกเบต้า-2 ในทางเดินหายใจ
2. Bปิดกั้นตัวรับมัสคารินิกในกล้ามเนื้อเรียบของทางเดินหายใจ
3. Cลดการอักเสบเหมือนคอร์ติโคสเตียรอยด์
4. Dปิดกั้นตัวรับลิวโคไตรอีน

Why is vincristine labelled "for intravenous use only – fatal if given by other routes"?

1. AAccidental intrathecal injection causes fatal ascending neurotoxicity
2. BSubcutaneous injection makes the drug inactive
3. CIntramuscular injection causes severe and prolonged hypoglycaemia
4. DOral vincristine causes immediate anaphylaxis

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. CHepatitis B infection makes rituximab completely ineffective
4. DRituximab is made from the hepatitis B virus