HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. A young adult client, admitted to the emergency department following a motor vehicle collision, is transfused with 4 units of PRBCs. The client’s pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all PRBCs have been transfused?
- A. 23%
- B. 25%
- C. 27%
- D. 29%
Correct answer: D
Rationale: One unit of PRBCs typically raises the hematocrit by 3%. Since the client received 4 units, the hematocrit is expected to increase by approximately 12% (4 units x 3% per unit). Therefore, the nurse should expect the client's hematocrit to be 29% after all PRBCs have been transfused. Choices A, B, and C are incorrect as they do not account for the cumulative effect of multiple PRBC units on the hematocrit level.
3. The nurse is providing discharge teaching for a client with heart failure. Which instruction should be included to prevent fluid overload?
- A. Weigh yourself daily and report a gain of 2 pounds in 24 hours
- B. Increase fluid intake to stay hydrated
- C. Consume a high-sodium diet to retain fluids
- D. Engage in vigorous exercise daily
Correct answer: A
Rationale: The correct answer is A: 'Weigh yourself daily and report a gain of 2 pounds in 24 hours.' Daily weight monitoring is crucial for detecting fluid retention early in clients with heart failure. Reporting a gain of 2 pounds in 24 hours can indicate fluid overload, prompting timely intervention. Choice B is incorrect because increasing fluid intake can exacerbate fluid overload in clients with heart failure. Choice C is incorrect as a high-sodium diet can worsen fluid retention. Choice D is incorrect as vigorous exercise can strain the heart and worsen heart failure symptoms.
4. A woman with chronic osteoarthritis is complaining of knee pain. Which pathophysiological process is contributing to her pain?
- A. Inflammation of the synovial membrane.
- B. Degeneration of the cartilage in the joint.
- C. Joint inflammation occurs when chondrocyte injury destroys joint cartilage, producing osteophytes.
- D. Formation of uric acid crystals in the joint space.
Correct answer: C
Rationale: The correct answer is C. In osteoarthritis, the breakdown of cartilage in the joints leads to chondrocyte injury, which results in the destruction of joint cartilage and the production of osteophytes. This process causes joint inflammation and pain. Choice A is incorrect because osteoarthritis primarily involves the articular cartilage rather than the synovial membrane. Choice B is incorrect as it describes the degeneration of cartilage but does not explain the specific pathophysiological process contributing to pain in osteoarthritis. Choice D is incorrect as the formation of uric acid crystals is characteristic of gout, not osteoarthritis.
5. An 82-year-old female client with type 2 diabetes and degenerative arthritis complains to the nurse that she has a hard time cutting her toenails. What should the nurse recommend?
- A. Seek routine nail care with a podiatrist.
- B. Encourage monthly pedicures at a nail salon.
- C. Soak feet for 10 minutes before cutting nails.
- D. Ask a family member to cut toenails.
Correct answer: A
Rationale: For an 82-year-old female client with type 2 diabetes and degenerative arthritis, the nurse should recommend seeking routine nail care with a podiatrist. This is crucial to ensure proper and safe toenail care, reducing the risk of injury and infection, which is especially important for diabetic clients. Encouraging monthly pedicures at a nail salon (choice B) may not address the underlying issues related to diabetes and arthritis. Soaking feet for 10 minutes before cutting nails (choice C) may help soften the nails but does not address the difficulty the client faces in cutting them. Asking a family member to cut toenails (choice D) may not guarantee the expertise needed for proper diabetic foot care, which a podiatrist can provide.
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