HESI LPN
Adult Health 2 Final Exam
1. The nurse is caring for a client who has just undergone a total hip replacement. Which intervention is most important to prevent postoperative complications?
- A. Encourage early ambulation
- B. Apply ice to the surgical site
- C. Monitor the surgical site for signs of infection
- D. Administer pain medication as prescribed
Correct answer: A
Rationale: Encouraging early ambulation is crucial following a total hip replacement surgery as it helps prevent complications such as deep vein thrombosis (DVT) by promoting circulation. Early ambulation also aids in preventing pneumonia, muscle atrophy, and pressure ulcers. Applying ice to the surgical site may help with pain and swelling, but it is not as critical in preventing complications as early ambulation. While monitoring the surgical site for signs of infection is important, it is not as crucial in preventing postoperative complications compared to early ambulation. Administering pain medication as prescribed is essential for comfort and pain management but does not directly prevent postoperative complications like early ambulation does.
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. The healthcare provider reviews the laboratory results of a client whose serum pH is 7.38. What does this value imply about the client's homeostasis?
- A. Alkalosis
- B. Acidosis
- C. Normal serum pH
- D. Incompatible with life
Correct answer: C
Rationale: A pH of 7.38 falls within the normal range (7.35-7.45), indicating that the client’s acid-base balance is adequately maintained. Choices A and B are incorrect as alkalosis and acidosis refer to abnormal pH levels. Choice D is incorrect as a pH of 7.38 within the normal range is compatible with life.
4. The client with chronic kidney disease (CKD) is being educated about dietary modifications. Which dietary restriction should the nurse emphasize the most?
- A. Limit intake of high-fiber foods
- B. Restrict protein intake
- C. Avoid dairy products
- D. Increase fluid intake
Correct answer: B
Rationale: The most crucial dietary restriction to emphasize for a client with chronic kidney disease (CKD) is to restrict protein intake. By restricting protein intake, the workload on the kidneys is reduced, which helps slow the progression of CKD. While high-fiber foods are generally beneficial, they may need to be limited in some individuals with CKD due to potassium concerns, making choice A less critical. Avoiding dairy products may be necessary in some cases to control phosphorus levels, but it is not as vital as restricting protein intake. Increasing fluid intake is essential for kidney health, but it is not the most critical dietary modification for clients with CKD.
5. What are the final factors that contribute to blood pressure? (Select all that apply)
- A. Heart rate
- B. Stroke volume
- C. Peripheral resistance
- D. Neuroendocrine hormones
Correct answer: D
Rationale: Neuroendocrine hormones play a crucial role in regulating blood pressure by influencing factors like fluid balance, blood volume, and vessel constriction. While heart rate, stroke volume, and peripheral resistance are important factors affecting blood pressure, the final parameters that directly produce blood pressure are influenced by neuroendocrine hormones. Therefore, choice D is the correct answer. Choices A, B, and C are involved in the regulation of blood pressure but are not the final parameters that directly produce it.
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