HESI LPN
Community Health HESI Practice Exam
1. A client is scheduled to have a blood test for cholesterol and triglycerides the next day. The nurse would tell the client
- A. ''Be sure to eat a fat-free diet until the test.''
- B. ''Do not eat or drink anything but water for 12 hours before the blood test.''
- C. ''Have the blood drawn within 2 hours of eating breakfast.''
- D. ''Stay at the laboratory so 2 blood samples can be drawn an hour apart.''
Correct answer: B
Rationale: Fasting for at least 12 hours is necessary before a cholesterol and triglyceride test to ensure accurate results by avoiding fluctuations that can occur after eating. Choice A is incorrect because a fat-free diet is not required; fasting is. Choice C is incorrect as it suggests having the test right after eating, which can affect the results. Choice D is incorrect as there is no need to stay at the laboratory for 2 blood samples unless specifically instructed by a healthcare provider.
2. Care provided by specialists in health facilities such as medical centers, regional, and provincial hospitals falls under which level of care?
- A. Secondary level care
- B. Primary care
- C. Tertiary care
- D. Intermediate care
Correct answer: C
Rationale: Tertiary care is the correct answer because it involves specialized care provided by medical centers and regional or provincial hospitals. Primary care (Choice B) refers to basic healthcare services usually delivered by general practitioners, nurses, and other healthcare professionals. Secondary care (Choice A) involves specialized services provided by medical specialists and other health professionals who generally do not have first contact with patients. Intermediate care (Choice D) is not a recognized level of care in the typical healthcare system hierarchy; it may cause confusion as it's not a standard term used to describe levels of care.
3. 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.
4. 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.
5. A client is admitted with the diagnosis of myocardial infarction (MI). Which of the following lab values would be consistent with this diagnosis?
- A. Low serum albumin
- B. High serum cholesterol
- C. Abnormally low white blood cell count
- D. Elevated creatinine phosphokinase (CPK)
Correct answer: D
Rationale: The correct answer is D: Elevated creatinine phosphokinase (CPK). Elevated CPK levels indicate muscle damage, including damage to the cardiac muscle, which aligns with the diagnosis of myocardial infarction. Choice A, low serum albumin, is not directly related to myocardial infarction. Choice B, high serum cholesterol, is more associated with conditions like atherosclerosis rather than acute myocardial infarction. Choice C, abnormally low white blood cell count, is typically not a lab value associated with myocardial infarction; instead, it could suggest other conditions like infections or bone marrow issues.
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