HESI RN
HESI Pharmacology Practice Exam
1. The camp nurse asks the children preparing to swim in the lake if they have applied sunscreen. The nurse reminds the children that chemical sunscreens are most effective when applied:
- A. Immediately before swimming
- B. 15 minutes before exposure to the sun
- C. Immediately before exposure to the sun
- D. At least 30 minutes before exposure to the sun
Correct answer: D
Rationale: Chemical sunscreens are most effective when applied at least 30 minutes before exposure to the sun to allow them to penetrate the skin and provide optimal protection. Applying sunscreen immediately before swimming (Choice A) or immediately before exposure to the sun (Choice C) may not provide sufficient time for the sunscreen to be absorbed and offer proper protection. Applying sunscreen 15 minutes before sun exposure (Choice B) is also not ideal as it may not allow enough time for the sunscreen to work effectively. Therefore, the correct answer is to apply chemical sunscreen at least 30 minutes before exposure to the sun to ensure it can be absorbed and offer the intended protection. It is important to reapply sunscreen after swimming or sweating to maintain its effectiveness.
2. A client with diabetes mellitus is prescribed prednisone for an acute exacerbation of asthma. Which of the following should the nurse include in the client's teaching plan?
- A. Increase the dose of insulin while taking prednisone.
- B. Take the prednisone with food.
- C. Monitor blood glucose levels closely.
- D. Do not discontinue prednisone abruptly.
Correct answer: C
Rationale: The correct answer is to monitor blood glucose levels closely. Prednisone can elevate blood glucose levels, necessitating close monitoring. Adjusting the insulin dose may be necessary, but this should be managed by a healthcare provider. Prednisone should be taken with food to reduce gastrointestinal discomfort and should not be stopped suddenly to prevent adverse effects.
3. A client is receiving meperidine (Demerol) for pain management. Which assessment finding requires immediate action?
- A. Constipation
- B. Drowsiness
- C. Respiratory rate of 10 breaths per minute
- D. Nausea
Correct answer: C
Rationale: A respiratory rate of 10 breaths per minute indicates respiratory depression, a severe side effect of meperidine (Demerol) that necessitates immediate intervention to prevent further complications. Constipation, drowsiness, and nausea are common but less urgent side effects that do not pose an immediate life-threatening risk. Respiratory depression can lead to respiratory arrest and must be addressed promptly to ensure the client's safety and well-being.
4. Carbamazepine (Tegretol) is prescribed for a client with a diagnosis of psychomotor seizures. The nurse reviews the client's health history, knowing that this medication is contraindicated if which of the following disorders is present?
- A. Headaches
- B. Liver disease
- C. Hypothyroidism
- D. Diabetes mellitus
Correct answer: B
Rationale: Carbamazepine (Tegretol) is contraindicated in liver disease due to its potential to cause hepatic toxicity. Regular monitoring of liver function tests is necessary when using this medication to detect any signs of liver damage.
5. The client with ovarian cancer is being treated with vincristine (Oncovin). The nurse monitors the client, knowing that which of the following indicates a side effect specific to this medication?
- A. Diarrhea
- B. Hair loss
- C. Chest pain
- D. Numbness and tingling in the fingers and toes
Correct answer: D
Rationale: The correct answer is D: Numbness and tingling in the fingers and toes. Vincristine is known to cause peripheral neuropathy as a side effect, resulting in numbness and tingling in the fingers and toes. Diarrhea, hair loss, and chest pain are not typically associated with vincristine use.
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