HESI RN
HESI Pharmacology Practice Exam
1. A postoperative client has received a dose of naloxone hydrochloride for respiratory depression shortly after transfer to the nursing unit from the postanesthesia care unit. After administration of the medication, the nurse checks the client for:
- A. Pupillary changes
- B. Scattered lung wheezes
- C. Sudden increase in pain
- D. Sudden episodes of diarrhea
Correct answer: C
Rationale: Naloxone hydrochloride is an antidote to opioids and may be administered to postoperative clients to address respiratory depression. This medication can also reverse the effects of analgesics, potentially leading to a sudden increase in pain. Therefore, the nurse must assess the client for any unexpected rise in pain levels after naloxone administration. Choices A, B, and D are incorrect because pupillary changes, scattered lung wheezes, and sudden episodes of diarrhea are not typically associated with naloxone administration for respiratory depression.
2. Which laboratory test should the nurse monitor to determine the effectiveness of heparin therapy for a client with deep vein thrombosis?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Activated partial thromboplastin time (aPTT)
- D. Hemoglobin and hematocrit
Correct answer: C
Rationale: The activated partial thromboplastin time (aPTT) is the specific laboratory test used to monitor the effectiveness of heparin therapy in patients with deep vein thrombosis. It measures the time it takes for blood to clot and is crucial in assessing the therapeutic range of heparin. Platelet count, prothrombin time (PT), and hemoglobin and hematocrit levels are important parameters in assessing coagulation and blood status but do not directly indicate the effectiveness of heparin therapy.
3. 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.
4. When a client is taking lansoprazole (Prevacid), which question should the nurse ask during data collection to determine medication effectiveness?
- A. Has your appetite increased?
- B. Are you experiencing any heartburn?
- C. Do you have any problems with vision?
- D. Do you experience any leg pain when walking?
Correct answer: B
Rationale: When a client is taking lansoprazole (Prevacid), a gastric acid pump inhibitor used to treat gastroesophageal reflux disease (GERD), the nurse should ask if the client is experiencing any heartburn to determine medication effectiveness. Heartburn is a common symptom of GERD, and the reduction of heartburn indicates the effectiveness of lansoprazole in managing acid reflux symptoms. Choices A, C, and D are not relevant to assessing the effectiveness of lansoprazole for GERD.
5. A client is taking docusate sodium (Colace). The nurse monitors which of the following to determine whether the client is experiencing a therapeutic effect from this medication?
- A. Abdominal pain
- B. Reduction in steatorrhea
- C. Hematest-negative stools
- D. Regular bowel movements
Correct answer: D
Rationale: The therapeutic effect of docusate sodium (Colace) is to soften stools and promote regular bowel movements, making option D the correct choice. Monitoring for regular bowel movements would indicate that the medication is working as intended by relieving or preventing constipation. Options A, B, and C are not directly related to the therapeutic effect of docusate sodium. Abdominal pain (option A) is a symptom that might indicate a problem rather than a therapeutic effect. Reduction in steatorrhea (option B) and Hematest-negative stools (option C) are not specific outcomes associated with docusate sodium.
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