HESI LPN
HESI Test Bank Medical Surgical Nursing
1. The health care provider is treating a child with meningitis with a course of antibiotic therapy. When should the nurse expect the child to be out of isolation?
- A. When the course of antibiotics is complete
- B. When a negative CNS culture is obtained
- C. When the antibiotics have been initiated for 24 hours
- D. When the child has no symptoms of the disease
Correct answer: C
Rationale: The correct answer is C because a child with bacterial meningitis should be isolated for at least 24 hours until antibiotic therapy has been initiated. This period allows the antibiotics to start working against the infection, reducing the risk of spreading it to others. Choice A is incorrect because isolation is not solely based on completing the course of antibiotics; the initiation is crucial. Choice B is incorrect as waiting for a negative CNS culture may take longer and delay necessary precautions. Choice D is incorrect as symptom resolution does not guarantee the eradication of the infection and may still pose a risk of transmission.
2. The nurse is teaching a client how to collect a sputum specimen. Which steps should the nurse instruct the client to follow when collecting sputum?
- A. Breathe deeply, followed by swallowing.
- B. Breathe deeply, followed by spitting into a cup.
- C. Breathe deeply, followed by coughing up the sputum.
- D. Breathe deeply, followed by clearing the throat.
Correct answer: C
Rationale: The correct answer is to instruct the client to breathe deeply followed by coughing up the sputum. This method ensures that the specimen is collected from the lower respiratory tract and is not contaminated by saliva. Choice A (swallowing) does not result in sputum collection, while choice B (spitting into a cup) may lead to saliva contamination. Choice D (clearing the throat) is not an effective way to collect sputum as it may involve getting rid of saliva, not sputum.
3. The healthcare provider is assessing a client with a chest tube. Which finding indicates that the chest tube is functioning properly?
- A. Continuous bubbling in the water seal chamber
- B. Tidaling in the water seal chamber
- C. Absence of drainage in the collection chamber
- D. Fluid level in the suction control chamber is below the prescribed level
Correct answer: B
Rationale: Tidaling in the water seal chamber indicates proper chest tube function. Tidaling refers to the rise and fall of fluid in the water seal with inhalation and exhalation, demonstrating the patency of the system. Continuous bubbling (Choice A) in the water seal chamber indicates an air leak. Absence of drainage in the collection chamber (Choice C) is not a desired finding as it suggests no drainage is occurring. A fluid level below the prescribed level in the suction control chamber (Choice D) may indicate inadequate suction.
4. 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.
5. The nurse instructs the mother of a child with a ventricular septal defect that she can expect the child to become cyanotic when the child does what?
- A. Experiences an elevation in temperature.
- B. Sleeps on the left side.
- C. Cries vigorously.
- D. Eats.
Correct answer: C
Rationale: The correct answer is C: Cries vigorously. When the child cries vigorously, it increases the pressure in the right ventricle, allowing unoxygenated blood to enter the circulating volume, leading to cyanosis. This occurs due to the shunting of blood from the right side of the heart to the left side through the ventricular septal defect. Choices A, B, and D are incorrect because they do not directly impact the pressure in the right ventricle, which is crucial in causing cyanosis in this scenario.
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