HESI RN
Pharmacology HESI
1. A client has a prescription to take guaifenesin (Humibid) every 4 hours, as needed. The nurse determines that the client understands the most effective use of this medication if the client states that he or she will:
- A. Watch for irritability as a side effect.
- B. Take the tablet with a full glass of water.
- C. Take an extra dose if the cough is accompanied by fever.
- D. Crush the sustained-release tablet if immediate relief is needed.
Correct answer: B
Rationale: Guaifenesin is an expectorant used to help loosen mucus and make coughs more productive. Taking it with a full glass of water helps decrease the viscosity of secretions, making it easier to expel mucus from the respiratory tract. It is important not to crush sustained-release tablets, as this can alter the intended release of the medication and lead to potential adverse effects.
2. A client with hyperlipidemia is prescribed atorvastatin (Lipitor). Which instruction should the nurse include in the teaching plan?
- A. Take the medication in the morning.
- B. Avoid consuming grapefruit juice.
- C. Increase your intake of dairy products.
- D. Take the medication with food.
Correct answer: B
Rationale: The correct instruction for the nurse to include in the teaching plan is to advise the client to avoid consuming grapefruit juice. Grapefruit juice can increase the risk of atorvastatin (Lipitor) toxicity by inhibiting its metabolism. Atorvastatin is typically taken in the evening as cholesterol synthesis occurs at night. Increasing dairy intake is not specifically recommended for atorvastatin therapy, and the medication can be taken with or without food.
3. A client is being educated about the use of levodopa-carbidopa (Sinemet) for Parkinson's disease. Which statement by the client indicates a need for further teaching?
- A. I should avoid taking the medication with a high-protein meal.
- B. I may experience dizziness when getting up quickly.
- C. I might notice a darkening of my urine.
- D. I should report any uncontrolled movements to my healthcare provider.
Correct answer: A
Rationale: The correct answer is A. Levodopa-carbidopa (Sinemet) should not be taken with a high-protein meal as protein can interfere with the absorption of the medication. It is recommended to take it on an empty stomach or with a light meal. Choices B, C, and D are accurate statements regarding potential side effects and actions to take while on levodopa-carbidopa therapy, indicating a good understanding by the client.
4. A nurse reinforces discharge instructions to a postoperative client who is taking warfarin sodium (Coumadin). Which statement, if made by the client, reflects the need for further teaching?
- A. I will take my pills every day at the same time.
- B. I will be certain to avoid alcohol consumption.
- C. I have already called my family to pick up a Medic-Alert bracelet.
- D. I will take Ecotrin (enteric-coated aspirin) for my headaches because it is coated.
Correct answer: D
Rationale: Ecotrin is an aspirin-containing product and should be avoided. Clients should avoid alcohol consumption, take prescribed medication at the same time each day, and use a Medic-Alert bracelet for emergency information.
5. A nurse is providing instructions to an adolescent who has a history of seizures and is taking an anticonvulsant medication. Which of the following statements indicates that the client understands the instructions?
- A. I will never be able to drive a car.
- B. My anticonvulsant medication will clear up my skin.
- C. I can't drink alcohol while I am taking my medication.
- D. If I forget my morning medication, I can take two pills at bedtime.
Correct answer: C
Rationale: The correct answer is C: 'I can't drink alcohol while I am taking my medication.' Alcohol can lower the seizure threshold and should be avoided by individuals taking anticonvulsants. Choice A is incorrect because it is an extreme statement and not necessary for someone taking anticonvulsants. Choice B is incorrect as anticonvulsant medications are not used to clear skin conditions. Choice D is incorrect because doubling up medication doses can be harmful and should not be done without healthcare provider approval.
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