HESI LPN
Community Health HESI Practice Exam
1. A child and his family were exposed to Mycobacterium tuberculosis about 2 months ago. To confirm the presence or absence of an infection, it is most important for all family members to have a
- A. Chest x-ray
- B. Blood culture
- C. Sputum culture
- D. PPD intradermal test
Correct answer: D
Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.
2. A client with a peptic ulcer is scheduled for a vagotomy and pyloroplasty. The nurse explains that the purpose of this surgery is to:
- A. Increase acid secretion
- B. Reduce acid secretion
- C. Promote gastric emptying
- D. Remove the ulcerated area
Correct answer: B
Rationale: The correct answer is B: "Reduce acid secretion." Vagotomy is performed to reduce acid secretion by cutting the vagus nerve, which stimulates acid production. Choices A, C, and D are incorrect. A vagotomy does not increase acid secretion, promote gastric emptying, or remove the ulcerated area. It specifically aims to decrease acid production to help in the healing of peptic ulcers.
3. Which of the following patients should the home care nurse assess first?
- A. A 65-year-old male with known COPD and difficulty breathing after climbing a flight of stairs.
- B. A 78-year-old with CHF who has gained 4 lbs according to her tele-monitoring.
- C. A 50-year-old with bilateral leg swelling and difficulty walking.
- D. A 60-year-old with lower back pain.
Correct answer: A
Rationale: The correct answer is A. A patient with known COPD and difficulty breathing after physical exertion like climbing stairs requires immediate assessment by the nurse. This could indicate a potential exacerbation of COPD, which needs prompt intervention to prevent respiratory distress. Choices B, C, and D describe important patient situations that also require attention, but the urgency is higher with a COPD patient experiencing difficulty breathing.
4. A client presents at a community-based clinic with complaints of shortness of breath, headache, dizziness, and nausea. During the assessment, the nurse learns that the client is a migrant worker who often uses a gasoline-powered pressure washer to clean equipment and farm buildings. Which type of poisoning is the most likely etiology of this client's symptoms?
- A. asbestos
- B. silica dust
- C. histoplasmosis
- D. carbon monoxide
Correct answer: D
Rationale: The client's symptoms of shortness of breath, headache, dizziness, and nausea are indicative of carbon monoxide poisoning, which can result from exposure to gasoline-powered equipment like pressure washers. Asbestos (Choice A) exposure would typically present with respiratory issues and cancer but not the rapid onset of symptoms described. Silica dust (Choice B) exposure is associated with respiratory conditions like silicosis, not the multisystem symptoms in the scenario. Histoplasmosis (Choice C) is a fungal infection that primarily affects the lungs and is not related to the client's exposure to a gasoline-powered pressure washer.
5. Mark, 9 months old, is given oral rehydration solution because of diarrhea with some dehydration. In your follow-up visit, you observed that Mark's eyes become puffy. Which one of the following would you advise Mark's mother?
- A. continue giving ORS but more slowly
- B. show mother how much solution to give
- C. stop ORS and give plain water or milk
- D. reassess patient to determine how much ORS to give
Correct answer: A
Rationale: In this scenario, observing puffy eyes in a child being treated with oral rehydration solution may indicate fluid overload. Continuing to give ORS but more slowly is the correct course of action as it helps manage hydration without overloading fluids. Choice B is not the best option in this situation as the issue is not about the quantity of the solution, but the rate of administration. Choice C is incorrect because plain water or milk is not a suitable alternative for rehydration in cases of dehydration. Choice D is also incorrect as reassessing the patient does not directly address the issue of puffy eyes, which suggests a need to adjust the administration of ORS.
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