Phiếu bài tập Dược lý học có đáp án

How do second-generation antihistamines such as cetirizine and loratadine differ from older ones?

1. AThey are given only by injection
2. BThey block H2 receptors in the stomach
3. CThey work only on the skin
4. DThey cause much less drowsiness

Why do nurses wear chemotherapy-tested gloves and gowns when handling cytotoxic drugs?

1. ATo protect the drug from light
2. BBecause cytotoxic drugs are radioactive and give off radiation
3. CTo keep the drugs warm during the infusion
4. DTo avoid exposure to drugs that may cause cancer or birth defects

Levodopa chủ yếu được dùng để điều trị bệnh nào?

1. ABệnh Parkinson
2. BBệnh Alzheimer
3. CĐộng kinh
4. DXơ cứng rải rác

An adult patient is due to receive digoxin. The apical pulse, counted for a full minute, is 52 beats per minute. What should the nurse do?

1. AGive half the dose and document the pulse
2. BGive the dose and recheck the pulse in one hour
3. CWithhold the dose and notify the prescriber
4. DGive the dose with food to slow absorption

Benzathine benzylpenicillin (penicillin G benzathine) is ordered. Which route is correct?

1. ADeep intramuscular only
2. BSubcutaneous in the abdomen
3. CIntravenous push
4. DIntravenous infusion over 30 minutes

Why are many drugs started at lower doses in older adults?

1. ALower doses are cheaper for older patients
2. BKidney and liver clearance often decline, and sensitivity to drugs increases
3. COlder adults always weigh more than younger adults, so drugs last longer
4. DOlder adults absorb no drugs from the stomach

Why should a dose never be written as "5,0 mg" on a medication order?

1. AThe pharmacy cannot supply doses that contain a decimal point
2. BIt means the dose must be given five times
3. CThe decimal point may be missed, and the dose read as 50 mg
4. DIt is too precise for most drugs

A patient with HIV has a CD4 count below 200 cells/mm³. Which prophylaxis is usually started?

1. AOseltamivir to prevent influenza
2. BCo-trimoxazole to prevent Pneumocystis pneumonia
3. CIsoniazid to prevent hepatitis B
4. DFluconazole to prevent urinary and skin infections