HESI RN
HESI Pharmacology Practice Exam
1. A client is learning how to mix regular insulin and NPH insulin in the same syringe. Which action, if performed by the client, indicates the need for further teaching?
- A. Withdraws the NPH insulin first
- B. Withdraws the regular insulin first
- C. Injects air into the NPH insulin vial first
- D. Injects an amount of air equal to the desired dose of insulin into the vial
Correct answer: A
Rationale: When mixing regular insulin with another insulin preparation, it is crucial to withdraw the regular insulin first to prevent contamination. NPH insulin should be drawn after the regular insulin to maintain the integrity of each insulin type. Therefore, if the client withdraws the NPH insulin first, it indicates the need for further teaching. Choice B is correct as withdrawing regular insulin first is the appropriate step. Choice C is incorrect as air should be injected into the vial containing the regular insulin to maintain pressure. Choice D is incorrect as injecting air equal to the desired dose of insulin into the vial is a correct step in preparing the insulin for withdrawal.
2. A client with hypertension is prescribed lisinopril (Zestril). Which instruction should the nurse include in the teaching plan?
- A. Avoid foods high in potassium.
- B. Avoid taking the medication with grapefruit juice.
- C. Monitor blood pressure regularly.
- D. Report any swelling of the lips or face.
Correct answer: D
Rationale: The correct instruction for the nurse to include in the teaching plan is to 'Report any swelling of the lips or face.' Lisinopril (Zestril) can cause angioedema, which is swelling of the lips or face. This is a serious side effect that should be reported immediately. Clients do not need to avoid potassium-rich foods unless instructed by their healthcare provider, should avoid taking the medication with grapefruit juice, and should monitor their blood pressure regularly, not just weekly.
3. 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.
4. While assisting in caring for a pregnant client receiving intravenous magnesium sulfate for preeclampsia management, a nurse notes the client's absent deep tendon reflexes. What determination should the nurse make based on this data?
- A. The magnesium sulfate is effective.
- B. The infusion rate needs to be increased.
- C. The client is experiencing cerebral edema.
- D. The client is experiencing magnesium toxicity.
Correct answer: D
Rationale: When a pregnant client receiving intravenous magnesium sulfate for preeclampsia management exhibits absent deep tendon reflexes, this indicates magnesium toxicity. Magnesium toxicity can occur as a complication of magnesium sulfate therapy, leading to suppressed reflexes. It is crucial for the nurse to recognize this sign promptly and report it to prevent further complications or harm to the client.
5. Insulin glargine (Lantus) is prescribed for a client with diabetes mellitus. The nurse tells the client that it is best to take the insulin:
- A. 1 hour after each meal
- B. Once daily, at the same time each day
- C. 15 minutes before breakfast, lunch, and dinner
- D. Before each meal, based on the blood glucose level
Correct answer: B
Rationale: Insulin glargine (Lantus) is a long-acting insulin with a duration of action of approximately 24 hours, making it suitable for once-daily dosing at the same time each day. This regimen helps maintain consistent blood glucose levels and simplifies the client's treatment routine. Taking insulin glargine once daily provides basal insulin coverage throughout the day, reducing the risk of hypoglycemia compared to short-acting insulins that are taken before each meal.
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