HESI LPN
Adult Health Exam 1
1. Which nursing activity is within the scope of practice for the practical nurse?
- A. Complete an admission assessment in the normal newborn nursery
- B. Discontinue a central venous catheter that has become dislodged
- C. Observe a client rotate the subcutaneous site for an insulin pump
- D. Monitor a continuous narcotic epidural for a postoperative client
Correct answer: C
Rationale: The correct answer is C: 'Observe a client rotate the subcutaneous site for an insulin pump.' This activity is within the scope of practice for a practical nurse as it involves observing and ensuring proper technique for using an insulin pump, which aligns with their training and responsibilities. Choices A, B, and D are beyond the typical scope of practice for a practical nurse. Completing an admission assessment for a newborn nursery is usually performed by a registered nurse. Discontinuing a dislodged central venous catheter and monitoring a narcotic epidural require advanced skills and knowledge, usually carried out by registered nurses or advanced practice nurses.
2. A client with a history of chronic obstructive pulmonary disease (COPD) is prescribed oxygen therapy at 2 liters per minute via nasal cannula. What is the most important instruction the nurse should provide?
- A. Increase the oxygen flow rate if shortness of breath occurs
- B. Use oxygen only when experiencing shortness of breath
- C. Do not adjust the oxygen flow rate without consulting a healthcare provider
- D. Use a humidifier with the oxygen to prevent dry mucous membranes
Correct answer: C
Rationale: The most important instruction the nurse should provide to a client with COPD prescribed oxygen therapy is not to adjust the oxygen flow rate without consulting a healthcare provider. This is crucial because too much oxygen can suppress the client's respiratory drive, leading to further complications. Choice A is incorrect because increasing the oxygen flow rate without medical advice can be harmful. Choice B is incorrect as oxygen therapy should be used as prescribed, not just when symptoms occur. Choice D is incorrect as the priority is to ensure the correct oxygen flow rate rather than using a humidifier.
3. What is the priority nursing action during the immediate postoperative period for a client who just underwent a coronary artery bypass graft?
- A. Monitor for signs of infection
- B. Ensure the client is pain-free
- C. Assess for bleeding and arrhythmias
- D. Maintain a patent airway
Correct answer: D
Rationale: Maintaining a patent airway is the priority nursing action during the immediate postoperative period for a client who just underwent a coronary artery bypass graft. This is crucial to ensure adequate oxygenation, especially in the early recovery phase. Monitoring for signs of infection, ensuring the client is pain-free, and assessing for bleeding and arrhythmias are important aspects of postoperative care but maintaining a clear airway takes precedence in this scenario to prevent hypoxia and respiratory compromise. In the immediate postoperative period, maintaining a patent airway is essential to prevent complications such as airway obstruction, hypoxia, and respiratory distress, which are critical in ensuring the client's safety and recovery.
4. A client with chronic kidney disease is being evaluated for dialysis. Which laboratory value would be most concerning to the nurse?
- A. Hemoglobin 9.5 g/dL
- B. Potassium 6.2 mEq/L
- C. Creatinine 3.5 mg/dL
- D. BUN 50 mg/dL
Correct answer: B
Rationale: The correct answer is B: Potassium 6.2 mEq/L. In chronic kidney disease, the kidneys struggle to regulate potassium levels, leading to hyperkalemia. A potassium level of 6.2 mEq/L is dangerously high and can cause life-threatening cardiac arrhythmias. Hemoglobin of 9.5 g/dL may indicate anemia, which is common in chronic kidney disease but is not immediately life-threatening. Creatinine and BUN levels are markers of kidney function; although elevated levels indicate kidney impairment, they are not acutely life-threatening like severe hyperkalemia.
5. The client is being taught about a low-sodium diet. Which food should the client avoid?
- A. Fresh fruits
- B. Canned vegetables
- C. Fresh chicken
- D. Unsalted nuts
Correct answer: B
Rationale: The correct answer is B: Canned vegetables. Canned vegetables are often high in sodium due to the preservation process, so they should be avoided on a low-sodium diet. Fresh fruits (choice A), fresh chicken (choice C), and unsalted nuts (choice D) are all low-sodium options and can be included in a low-sodium diet. It is important to choose fresh or frozen vegetables over canned ones to reduce sodium intake. Fresh chicken and unsalted nuts are also good protein sources that are naturally low in sodium, making them suitable for a low-sodium diet. Therefore, clients following a low-sodium diet should prioritize fresh, whole foods over processed or canned options.
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