HESI LPN
HESI PN Exit Exam 2023
1. Which of the following dietary modifications should be recommended for a patient with chronic kidney disease (CKD)?
- A. High protein, low sodium
- B. Low protein, high potassium
- C. Low sodium, low potassium
- D. High calcium, low phosphorus
Correct answer: C
Rationale: A low sodium, low potassium diet is often recommended for patients with CKD to manage fluid balance and prevent electrolyte imbalances that the kidneys can no longer regulate effectively. High protein diets, as mentioned in choice A, can put extra strain on the kidneys, making it an incorrect choice. Choice B, which suggests a low protein, high potassium diet, is also incorrect because high potassium levels can be harmful to individuals with CKD. Choice D, advocating for a high calcium, low phosphorus diet, is not the typical dietary recommendation for CKD patients, even though managing calcium and phosphorus levels is important in their diet.
2. A post-operative client is recovering from a total knee replacement and is prescribed patient-controlled analgesia (PCA). What is the primary advantage of PCA for managing post-operative pain?
- A. It allows for consistent pain control without overmedication.
- B. It eliminates the need for oral pain medication.
- C. It reduces the risk of opioid addiction.
- D. It requires less monitoring by nursing staff.
Correct answer: A
Rationale: The primary advantage of PCA for managing post-operative pain is that it allows the client to control the administration of pain medication, leading to consistent pain control without overmedication. Choice B is incorrect as PCA does not eliminate the need for oral pain medication; it supplements it. Choice C is incorrect because while PCA can help reduce opioid consumption, it does not directly reduce the risk of opioid addiction. Choice D is incorrect as PCA actually requires close monitoring by nursing staff to ensure proper use and prevent complications.
3. Based on the principle of asepsis, which situation should the nurse consider to be sterile?
- A. A one-inch border around the edges of a sterile field set up in the operating room
- B. A sterile glove that the nurse thinks might have touched her hair
- C. A wrapped, unopened sterile 4x4 gauze pad placed on a damp tabletop
- D. An open sterile Foley catheter kit set up on a table at the nurse's waist level
Correct answer: D
Rationale: The correct answer is D because an open sterile Foley catheter kit set up at waist level is considered sterile if it has not been contaminated. Choice A is incorrect because the one-inch border around a sterile field is considered non-sterile. Choice B is incorrect because a sterile glove that might have touched the nurse's hair is likely contaminated. Choice C is incorrect because a wrapped, unopened sterile gauze pad placed on a damp tabletop may have become contaminated.
4. When caring for a patient with a chest tube, which nursing action is most important?
- A. Clamping the chest tube every 2 hours to prevent air leaks
- B. Keeping the drainage system below chest level
- C. Emptying the drainage system every hour to prevent backflow
- D. Removing the chest tube when drainage decreases significantly
Correct answer: B
Rationale: The most crucial nursing action when caring for a patient with a chest tube is to keep the drainage system below chest level (choice B). This position helps ensure proper drainage and prevents backflow of fluid or air into the pleural space, promoting optimal functioning of the chest tube. Clamping the chest tube every 2 hours (choice A) is incorrect as it can obstruct the drainage system and lead to complications. Emptying the drainage system every hour (choice C) is unnecessary unless there are specific clinical indications. Removing the chest tube when drainage decreases significantly (choice D) is also incorrect as the decision should be based on overall clinical assessment rather than drainage amount alone.
5. You are teaching students about how hyperosmotic agents (osmotic diuretics) are used to treat intracranial pressure. Which of the following is NOT one of the functions of hyperosmotic agents?
- A. Reduces brain metabolism and systemic blood pressure
- B. Reduces cerebral edema
- C. Dehydrates the brain
- D. Draws fluids from extravascular spaces into the plasma
Correct answer: A
Rationale: Hyperosmotic agents primarily work by reducing cerebral edema, dehydrating the brain, and drawing fluids from extravascular spaces into the plasma. However, they do not have a direct effect on reducing brain metabolism or systemic blood pressure. Therefore, the correct answer is A. Choice B is correct as hyperosmotic agents do help in reducing cerebral edema. Choice C is accurate as hyperosmotic agents dehydrate the brain. Choice D is also true as these agents draw fluids from extravascular spaces into the plasma.
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