HESI LPN
Community Health HESI Practice Exam
1. What is the measure of the number of new cases of a disease in a specific population during a certain time period called?
- A. Prevalence
- B. Incidence
- C. Mortality rate
- D. Morbidity rate
Correct answer: B
Rationale: The correct answer is B, Incidence. Incidence refers to the number of new cases of a disease in a specific population during a certain time period. Prevalence (choice A) refers to the total number of cases of a disease in a population at a specific point in time. Mortality rate (choice C) is the measure of the number of deaths in a particular population due to a specific cause. Morbidity rate (choice D) is a broader term that encompasses the incidence and prevalence of a disease in a population.
2. The nurse is caring for a 4-year-old child with a greenstick fracture. In explaining this type of fracture to the parents, the best response by the nurse should be that
- A. A child's bone is more flexible and can be bent 45 degrees before breaking
- B. Bones of children are more porous than adults and often have incomplete breaks
- C. Compression of porous bones produces a buckle or torus type break
- D. Bone fragments often remain attached by a periosteal hinge
Correct answer: B
Rationale: The correct answer is B. Greenstick fractures are common in children because their bones are softer and more porous than adult bones, leading to incomplete breaks when force is applied. Choice A is incorrect as greenstick fractures are not due to bone flexibility but rather the porous nature of children's bones. Choice C is incorrect as it describes a buckle or torus type break, which is not characteristic of a greenstick fracture. Choice D is incorrect as greenstick fractures do not involve bone fragments remaining attached by a periosteal hinge.
3. What title should be given to this professional role in occupational health? A registered nurse who develops researchable questions, conducts research, and communicates the findings to occupational and environmental health professionals, other peers, and the public.
- A. manager
- B. researcher
- C. clinician/practitioner
- D. health promotion specialist
Correct answer: B
Rationale: The correct answer is 'B: researcher.' In this context, the individual is primarily involved in developing research questions, conducting research, and disseminating findings, which aligns with the responsibilities of a researcher. Choice 'A: manager' is incorrect because the role described does not primarily involve managerial duties. Choice 'C: clinician/practitioner' is also incorrect as the focus is on research activities rather than direct clinical practice. Choice 'D: health promotion specialist' does not encompass the full scope of responsibilities described in the scenario.
4. 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.
5. In planning for the nursing care of the sick person in the home, the major point that the nurse must keep in mind is:
- A. who will be responsible for the patient during the nurse's absence from the home
- B. economic level of the family
- C. the availability of the nearest hospital
- D. whether or not the patient is under a private physician
Correct answer: A
Rationale: The correct answer is A because ensuring someone is responsible for the patient is crucial for continuous care. The presence of a caregiver during the nurse's absence ensures the patient's safety and well-being. Choice B, economic level of the family, is important but not the major point when planning nursing care in the home. Choice C, the availability of the nearest hospital, is significant but doesn't address the day-to-day care in the home. Choice D, whether or not the patient is under a private physician, is relevant but not as critical as ensuring someone is available to care for the patient at all times.
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