HESI LPN
Pharmacology HESI Practice
1. Twenty-four hours after starting to take oral penicillin for strep throat, a client calls the nurse to report the onset of a rash on the chest. What action should the nurse implement?
- A. Instruct the client to discontinue the penicillin immediately
- B. Instruct the client regarding the use of topical analgesic cream PRN
- C. Question the client about any other related symptoms
- D. Reinforce the need to take all doses of the penicillin
Correct answer: A
Rationale: In this scenario, the client has developed a rash after starting oral penicillin, which can indicate an allergic reaction. It is crucial for the nurse to instruct the client to discontinue the penicillin immediately. Continuing the medication can potentially lead to severe allergic reactions. Instructing about topical analgesic cream or questioning about other related symptoms may delay appropriate action in case of a severe allergic reaction. Reinforcing the need to complete all doses is not appropriate when an allergic reaction is suspected, as safety takes precedence over completing the antibiotic course.
2. The practical nurse administered 15 units of NPH insulin subcutaneously to a client before they consumed their breakfast at 7:30 AM. At what time is the client at an increased risk for a hypoglycemic reaction?
- A. 8:30 to 11:30 AM
- B. 3:30 to 7:30 PM
- C. 9:30 PM to midnight
- D. 1:00 to 5:00 AM
Correct answer: B
Rationale: NPH insulin, an intermediate-acting type, peaks approximately 8 to 12 hours after subcutaneous administration. Considering this, the client is most likely to experience a hypoglycemic reaction between 3:30 and 7:30 PM, making option B the correct answer. Choices A, C, and D are incorrect because they fall outside the peak time for a hypoglycemic reaction after administering NPH insulin.
3. A 43-year-old female client who has had a thyroidectomy due to Grave's disease is prescribed a thyroid replacement hormone. Which signs and symptoms are associated with thyroid hormone toxicity and should be reported promptly to the healthcare provider?
- A. Tinnitus and dizziness
- B. Tachycardia and chest pain
- C. Dry skin and intolerance to cold
- D. Weight gain and increased appetite
Correct answer: B
Rationale: The correct answer is B: Tachycardia and chest pain. Signs and symptoms of thyroid hormone toxicity, especially in cases of excessive dosage, include tachycardia (rapid heart rate) and chest pain. These symptoms are consistent with hyperthyroidism, where the body is receiving an excessive amount of thyroid hormone. It is crucial to report these symptoms promptly to the healthcare provider to adjust the medication dosage and prevent potential complications. Choices A, C, and D are not indicative of thyroid hormone toxicity. Tinnitus and dizziness (Choice A) are not typical symptoms of thyroid hormone toxicity. Dry skin and intolerance to cold (Choice C) are more common in hypothyroidism, while weight gain and increased appetite (Choice D) are associated with hypothyroidism as well, not thyroid hormone toxicity.
4. A client is prescribed methylprednisolone for an allergic reaction. The nurse should monitor for which potential side effect of this medication?
- A. Nausea and vomiting
- B. Weight gain
- C. Insomnia
- D. Increased appetite
Correct answer: B
Rationale: When a client is prescribed methylprednisolone, a corticosteroid, the nurse should monitor for weight gain as a potential side effect. Corticosteroids like methylprednisolone can cause weight gain and fluid retention due to their impact on metabolism and sodium retention. Nausea and vomiting are less common side effects of methylprednisolone. Insomnia and increased appetite are not typically associated with methylprednisolone use.
5. When a client with hepatic encephalopathy is receiving lactulose, which parameter is essential to monitor for a response to the drug?
- A. Serum hepatic enzymes
- B. Fingerstick glucose
- C. Stool color and character
- D. Serum electrolytes and ammonia
Correct answer: D
Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition. Options A, B, and C are incorrect because serum hepatic enzymes, fingerstick glucose, and stool color/character are not directly related to monitoring the response to lactulose therapy in hepatic encephalopathy.
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