HESI RN
HESI Pharmacology Practice Exam
1. A client is prescribed nitroglycerin (Nitro-Dur) transdermal patch for angina. Which instruction should the nurse include in the client's teaching plan?
- A. Apply the patch to a hairless area of skin.
- B. Leave the patch on for 24 hours.
- C. Apply the patch at the same time each day.
- D. You can keep the patch on while taking a shower.
Correct answer: C
Rationale: The correct instruction for the nurse to include in the client's teaching plan is to apply the nitroglycerin (Nitro-Dur) transdermal patch at the same time each day. This consistency helps maintain steady blood levels of the medication. While it is important to apply the patch to a hairless area of the skin for proper absorption, it does not necessarily have to be left on for 24 hours; typically, it is worn for 12-14 hours to allow for a nitrate-free period and reduce tolerance. Additionally, the patch can generally be kept on while taking a shower, as water exposure does not typically affect its efficacy.
2. Oxybutynin chloride (Ditropan XL) is prescribed for a client with neurogenic bladder. Which sign would indicate a possible toxic effect related to this medication?
- A. Pallor
- B. Drowsiness
- C. Bradycardia
- D. Restlessness
Correct answer: D
Rationale: Signs of toxicity related to oxybutynin chloride (Ditropan XL) include central nervous system excitation, such as nervousness, restlessness, hallucinations, and irritability. Other signs of toxicity may include hypotension or hypertension, confusion, tachycardia, a flushed or red face, and signs of respiratory depression. Restlessness is a sign of central nervous system excitation, which can indicate a possible toxic effect of this medication.
3. A client is being taught about the use of nitroglycerin (Nitrostat) for angina. Which statement by the client indicates a need for further teaching?
- A. I will sit or lie down when I take the medication.
- B. I can take up to three tablets, 5 minutes apart, if needed.
- C. I will call 911 if my chest pain is not relieved after taking three tablets.
- D. I will keep the medication in its original dark container.
Correct answer: B
Rationale: The correct administration of nitroglycerin for angina is to take up to three tablets, 5 minutes apart. If the chest pain persists after the third tablet, emergency medical services should be called. Taking more than three tablets or reducing the time interval between doses may lead to hypotension and indicates a need for further teaching.
4. The client has a PRN prescription for ondansetron (Zofran). For which condition should this medication be administered to the postoperative client?
- A. Paralytic ileus
- B. Incisional pain
- C. Urinary retention
- D. Nausea and vomiting
Correct answer: D
Rationale: Ondansetron, also known as Zofran, is an antiemetic medication primarily used to treat nausea and vomiting. In the postoperative setting, it is commonly administered to manage postoperative nausea and vomiting, which are frequent occurrences after surgery. Ondansetron works by blocking serotonin, a natural substance in the body that can trigger nausea and vomiting. It is also utilized to manage chemotherapy-induced nausea and vomiting. Therefore, the correct condition for which ondansetron should be administered to the postoperative client is nausea and vomiting.
5. The client has reinforced instructions for taking cholestyramine (Questran). Which statement indicates a need for further instructions?
- A. I will continue taking vitamin supplements.
- B. This medication will help lower my cholesterol.
- C. This medication should only be taken with water.
- D. A high-fiber diet is important while taking this medication.
Correct answer: C
Rationale: The correct answer is C because cholestyramine should not only be taken with water. Flavored products or fruit juices can improve the taste. Choices A, B, and D are all correct statements. It is important for the client to continue taking vitamin supplements, understand that cholestyramine helps lower cholesterol, and maintain a high-fiber diet while taking this medication to enhance its effectiveness.
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