HESI LPN
Community Health HESI Practice Exam
1. When a nurse teaches a community about the importance of hand hygiene, the nurse is engaging in:
- A. Primary prevention
- B. Secondary prevention
- C. Tertiary prevention
- D. Quaternary prevention
Correct answer: A
Rationale: The correct answer is A: Primary prevention. Primary prevention aims to prevent the occurrence of a disease or injury before it happens. Teaching about hand hygiene to the community helps in preventing infections from occurring in the first place. Choice B, Secondary prevention, involves early detection and treatment to halt or slow the progress of a condition. This would involve screening or early intervention after exposure. Choice C, Tertiary prevention, focuses on managing the disease to prevent complications, recurrence, or deterioration. This would include rehabilitation and monitoring to prevent further complications. Choice D, Quaternary prevention, relates to actions taken to avoid unnecessary interventions or over-medicalization. This usually involves questioning the necessity of certain medical procedures or treatments to prevent harm to patients.
2. The community health nurse has been following the care for an adolescent with a history of morbid obesity, asthma, hypertension, and is 22 weeks into a pregnancy. Which of these lab reports sent to the clinic needs to be called to the teen's healthcare provider within the next hour?
- A. Hemoglobin 11 g/dL and calcium 6 mg/dL
- B. Magnesium 0.8 mEq/L and creatinine 3 mg/dL
- C. Blood urea nitrogen 28 mg/dL and glucose 225 mg/dL
- D. Hematocrit 33% and platelets 200,000
Correct answer: B
Rationale: The correct answer is B. The low magnesium level and elevated creatinine suggest possible renal dysfunction, which is concerning, especially in a pregnant client with multiple risk factors such as morbid obesity, asthma, and hypertension. Immediate attention is needed to address the potential renal issues. The other choices do not indicate such urgent conditions. Hemoglobin and calcium levels in choice A are within acceptable ranges. Choice C shows elevated blood urea nitrogen and glucose levels, which may need monitoring but not immediate attention. Choice D's hematocrit and platelet levels are also within normal ranges and do not indicate an urgent issue.
3. A nurse working in the community assumes different roles. When the nurse acts as a community organizer, they perform which of the following functions?
- A. motivate and enhance community participation when planning and implementing health programs and services
- B. develop the family's capability to take care of a sick member
- C. identify needs, priorities, and problems of individuals, families, and the community
- D. participate in community development activities
Correct answer: D
Rationale: When a nurse acts as a community organizer, they participate in community development activities, which involve working with the community to address issues such as healthcare access, social services, and infrastructure. The other choices do not directly align with the role of a community organizer. Choice A is more related to community participation in health programs, choice B focuses on family care, and choice C pertains to identifying needs and priorities rather than organizing community development activities.
4. Which topic should be included in planning a secondary prevention project for the local retirement community?
- A. Safety measures in the home.
- B. Adult immunization program.
- C. Rehabilitation after surgery.
- D. Vision and hearing screening.
Correct answer: D
Rationale: In planning a secondary prevention project for the local retirement community, vision and hearing screening should be included. This is crucial as sensory impairments are common among older adults and early detection through screening can help in preventing further complications. Safety measures in the home, adult immunization programs, and rehabilitation after surgery are important but fall more under primary or tertiary prevention strategies rather than secondary prevention, which focuses on early detection and intervention to prevent the progression of health conditions.
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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