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. Which of the following is the most effective way to prevent the spread of communicable diseases in a community?
- A. Regular health check-ups
- B. Isolation of infected individuals
- C. Immunization programs
- D. Public health education
Correct answer: C
Rationale: Immunization programs are the most effective way to prevent the spread of communicable diseases. Vaccinations help build immunity against specific diseases, reducing the likelihood of an outbreak. Regular health check-ups (Choice A) are important for individual health but do not directly prevent the spread of diseases on a community level. Isolation of infected individuals (Choice B) is a containment measure rather than prevention for the entire community. Public health education (Choice D) is valuable in raising awareness but may not be as effective as immunization programs in directly preventing the spread of communicable diseases.
3. The nurse is teaching a client with cardiac disease about the anatomy and physiology of the heart. Which is the correct pathway of blood flow through the heart?
- A. Right ventricle, left ventricle, right atrium, left atrium
- B. Left ventricle, right ventricle, left atrium, right atrium
- C. Right atrium, right ventricle, left atrium, left ventricle
- D. Right atrium, left atrium, right ventricle, left ventricle
Correct answer: C
Rationale: The correct pathway of blood flow through the heart starts with blood entering the right atrium, moving to the right ventricle, then to the lungs for oxygenation, returning to the left atrium, and finally to the left ventricle before being pumped out to the body. Option A is incorrect as it starts with the ventricles instead of the atria. Option B is incorrect as it has the sequence of ventricles before atria reversed. Option D is incorrect as it has the atria and ventricles mixed up.
4. When discussing hypothyroidism and treatment with the family of a newborn, the nurse should emphasize
- A. Expecting mental retardation in the child is likely
- B. Administering thyroid hormone can prevent problems
- C. This rare problem is always hereditary
- D. Physical growth/development will be delayed
Correct answer: B
Rationale: The correct answer is B. Administering thyroid hormone to a newborn diagnosed with hypothyroidism can prevent developmental delays and mental retardation. This treatment is crucial to ensure optimal growth and development. Choice A is incorrect because with prompt treatment, mental retardation can be prevented. Choice C is incorrect as hypothyroidism can also be acquired and not only hereditary. Choice D is incorrect as physical growth and development can be supported through timely administration of thyroid hormone.
5. The milk code aims to ensure that:
- A. the public receives accurate information about breastmilk and breastfeeding
- B. health workers do not provide samples of infant formula to pregnant women or mothers of infants
- C. companies consistently recognize the superiority of breastmilk
- D. health workers do not accept any incentives from milk companies
Correct answer: C
Rationale: The correct answer is C because the milk code emphasizes that companies should always acknowledge the superiority of breastmilk over formula. Choice A is incorrect because the focus is not on the public receiving information, but rather on companies recognizing breastmilk's superiority. Choice B is incorrect as it addresses health workers' actions, not the companies' behavior. Choice D is incorrect as the milk code is primarily concerned with regulating companies' practices, not health workers' acceptance of incentives.
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