HESI LPN
Community Health HESI Study Guide
1. From January 1 to 15, 1996, there were 8 cases of Tetanus neonatorum in San Lazaro Hospital. There were two deaths. What is the case fatality ratio of this disease?
- A. 20%
- B. 30%
- C. 28%
- D. 25%
Correct answer: D
Rationale: The case fatality ratio is calculated as (deaths/cases) * 100. In this case, there were 2 deaths out of 8 cases. Therefore, the calculation is (2/8) * 100 = 25%. Choices A, B, and C are incorrect as they do not match the correct calculation.
2. Iwa, two years old, was brought to the health center because of diarrhea for 4 days. Assessment revealed that Iwa has under-nutrition. Which of the following actions will you take?
- A. Advise the mother to give milk and juices between meals at home
- B. Give nutritious food available at home
- C. Refer to the hospital for proper management
- D. Provide mother with ORS solution and show her how to give the solution
Correct answer: A
Rationale: In the case of a child with under-nutrition and diarrhea, advising the mother to give milk and juices between meals at home is the appropriate action. This helps address the nutritional needs of the child while also providing hydration. Option B, giving nutritious food available at home, may not be sufficient in addressing immediate needs such as dehydration. Option C, referring to the hospital, may be necessary in severe cases but is not the first-line action. Option D, providing ORS solution, is important but does not directly address the under-nutrition concern.
3. The nurse is caring for a client on mechanical ventilation. When performing endotracheal suctioning, the nurse will avoid hypoxia by
- A. Inserting a fenestrated catheter with a whistle tip without suction
- B. Completing the suction pass in 30 seconds with a pressure of 150 mm Hg
- C. Hyperoxygenating with 100% O2 for 1 to 2 minutes before and after each suction pass
- D. Minimizing the suction pass to 60 seconds while slowly rotating the lubricated catheter
Correct answer: C
Rationale: Hyperoxygenating the client before and after suctioning helps prevent hypoxia by ensuring adequate oxygen levels during the procedure, which briefly interrupts the client's normal breathing pattern. Choice A is incorrect because inserting a fenestrated catheter with a whistle tip without suction would not prevent hypoxia. Choice B is incorrect as completing the suction pass in 30 seconds with a pressure of 150 mm Hg may lead to hypoxia. Choice D is incorrect as minimizing the suction pass to 60 seconds may not provide enough time for effective suctioning and could lead to hypoxia.
4. While assessing a client in an outpatient facility with a panic disorder, the nurse completes a thorough health history and physical exam. Which finding is most significant for this client?
- A. Compulsive behavior
- B. Sense of impending doom
- C. Fear of flying
- D. Predictable episodes
Correct answer: B
Rationale: The correct answer is B: 'Sense of impending doom.' In panic disorder, a sense of impending doom is a hallmark symptom often experienced by clients. This intense feeling of dread or fear is a key feature of panic attacks. Compulsive behavior (choice A) may be more indicative of obsessive-compulsive disorder rather than panic disorder. Fear of flying (choice C) may be more related to specific phobias rather than panic disorder. Predictable episodes (choice D) do not align with the unpredictable nature of panic attacks.
5. A key component of primary prevention strategies is:
- A. aggressive interventions
- B. detection
- C. culture
- D. education
Correct answer: D
Rationale: The correct answer is 'D: education.' Education plays a vital role in primary prevention strategies by empowering individuals with knowledge and skills to prevent the onset of diseases. Through education, people can make informed decisions about their health, adopt healthy behaviors, and engage in preventive measures. Choice A, 'aggressive interventions,' is incorrect as primary prevention focuses on proactive measures to avoid the development of diseases rather than aggressive reactive interventions. Choice B, 'detection,' is more aligned with secondary prevention, which involves early identification of diseases. Choice C, 'culture,' while important in shaping health behaviors, is not a key component specifically in primary prevention strategies.
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