HESI LPN
Medical Surgical HESI
1. 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.
2. The parents of a child who has been diagnosed with sickle cell anemia ask why their child experiences pain. What is the most likely cause of the pain?
- A. Inflammation of the vessels
- B. Obstructed blood flow
- C. Overhydration
- D. Stress-related headaches
Correct answer: B
Rationale: The correct answer is B: Obstructed blood flow. In sickle cell anemia, the sickle-shaped red blood cells can clump together, obstructing blood flow in the vessels. This obstruction leads to tissue hypoxia (lack of oxygen) and necrosis, causing pain. Choice A, inflammation of the vessels, is not the primary cause of pain in sickle cell anemia. Choice C, overhydration, is unrelated to the pathophysiology of sickle cell anemia. Choice D, stress-related headaches, is not a characteristic symptom of sickle cell anemia.
3. When is the best time to administer pancreatic enzyme replacement?
- A. Before meals and snacks
- B. Before bedtime
- C. Early in the morning
- D. After meals and snacks
Correct answer: A
Rationale: The correct answer is to administer pancreatic enzyme replacement before meals and snacks. This timing is crucial as it allows the enzymes to assist in the digestion of carbohydrates, fats, and proteins that are consumed during the meals. Administering the replacement after meals and snacks would not be effective as the enzymes need to be present in the digestive system when food is consumed. Options B and C are incorrect as they do not align with the optimal timing for pancreatic enzyme replacement administration.
4. Which signs/symptoms would be considered classical signs of meningeal irritation?
- A. Positive Kernig sign, diarrhea, and headache
- B. Negative Brudzinski sign, positive Kernig sign, and irritability
- C. Positive Brudzinski sign, positive Kernig sign, and photophobia
- D. Negative Kernig sign, vomiting, and fever
Correct answer: C
Rationale: The correct answer is C: Positive Brudzinski sign, positive Kernig sign, and photophobia are considered classical signs of meningeal irritation. The Kernig sign is positive when the leg is extended at the knee and then raised, resulting in pain and resistance. The Brudzinski sign is positive when flexing the neck causes flexion of the hips and knees due to meningeal irritation. Photophobia, or sensitivity to light, is a common symptom due to meningeal inflammation. Choices A, B, and D are incorrect because they do not include the classic signs associated with meningeal irritation.
5. 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.
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