HESI LPN
Community Health HESI Exam
1. Which of the following measures the frequency of new cases of the phenomenon during a given period of time?
- A. prevalence rate
- B. proportionate mortality rate
- C. case fatality rate
- D. incidence rate
Correct answer: D
Rationale: The correct answer is D, incidence rate. Incidence rate measures the frequency of new cases of a phenomenon, providing important information about the risk of developing the condition. Prevalence rate (choice A) reflects both old and new cases, proportionate mortality rate (choice B) is the proportion of deaths due to a specific cause, and case fatality rate (choice C) measures the proportion of deaths among confirmed cases, not just new cases.
2. When assisting a family who fails to take action during a sick member despite suggestions, you will:
- A. explain the consequences of inaction
- B. identify the courses of action open to the family and the resources needed for each
- C. discuss the consequences of each course of action available
- D. influence the family to act on what you think is best for the situation
Correct answer: B
Rationale: When helping a family decide on actions to take, it is essential to identify the courses of action available to them and the resources needed for each. This empowers the family to make informed decisions based on their specific situation. Explaining the consequences of inaction (Choice A) may be necessary but does not provide a range of options. Discussing the consequences of each course of action (Choice C) is important but does not actively guide the family on the available actions. Influencing the family (Choice D) to act based on personal judgment undermines their autonomy and may not lead to the best outcome.
3. What is a critical factor in determining community health?
- A. Number of hospitals
- B. Availability of healthcare services
- C. Socioeconomic status
- D. Population density
Correct answer: B
Rationale: The availability of healthcare services is a critical factor in determining community health. While the number of hospitals may contribute to healthcare accessibility, it is the overall availability of healthcare services that encompasses various factors including hospitals, clinics, healthcare providers, and resources. Socioeconomic status and population density are important determinants of health outcomes, but the direct availability of healthcare services plays a more immediate and direct role in promoting community health.
4. The nurse is planning care for a client with increased intracranial pressure. The best position for this client is
- A. Trendelenburg
- B. Prone
- C. Semi-Fowler's
- D. Side-lying with head flat
Correct answer: C
Rationale: The correct answer is C, Semi-Fowler's. This position helps to reduce intracranial pressure by promoting venous drainage from the head while maintaining adequate oxygenation. Option A, Trendelenburg position, is incorrect as it involves placing the patient with the head lower than the body, which can increase intracranial pressure. Option B, Prone position, is also incorrect as it involves lying on the stomach, which can further elevate intracranial pressure. Option D, Side-lying with head flat, does not provide the same benefits as the Semi-Fowler's position in terms of promoting venous drainage and maintaining oxygenation in a client with increased intracranial pressure.
5. 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.
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