HESI LPN
Community Health HESI Study Guide
1. The school nurse is called to the playground for an episode of mouth trauma. The nurse finds that the front tooth of a 9-year-old child has been avulsed (knocked out). After recovering the tooth, the initial response should be to
- A. Rinse the tooth in water before placing it in the socket
- B. Place the tooth in a clean plastic bag for transport to the dentist
- C. Hold the tooth by the roots until reaching the emergency room
- D. Ask the child to replace the tooth even if the bleeding continues
Correct answer: A
Rationale: The correct immediate action after recovering an avulsed tooth is to rinse it with water and place it back in the socket. This helps preserve the tooth and increases the chances of successful re-implantation. Placing the tooth in a clean plastic bag for transport to the dentist (choice B) is not ideal as immediate re-implantation is preferred. Holding the tooth by the roots until reaching the emergency room (choice C) can further damage the tooth. Asking the child to replace the tooth even if bleeding continues (choice D) is incorrect and may lead to improper re-implantation.
2. 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.
3. A client presents at a community-based clinic with complaints of shortness of breath, headache, dizziness, and nausea. During the assessment, the nurse learns that the client is a migrant worker who often uses a gasoline-powered pressure washer to clean equipment and farm buildings. Which type of poisoning is the most likely etiology of this client's symptoms?
- A. asbestos
- B. silica dust
- C. histoplasmosis
- D. carbon monoxide
Correct answer: D
Rationale: The client's symptoms of shortness of breath, headache, dizziness, and nausea are indicative of carbon monoxide poisoning, which can result from exposure to gasoline-powered equipment like pressure washers. Asbestos (Choice A) exposure would typically present with respiratory issues and cancer but not the rapid onset of symptoms described. Silica dust (Choice B) exposure is associated with respiratory conditions like silicosis, not the multisystem symptoms in the scenario. Histoplasmosis (Choice C) is a fungal infection that primarily affects the lungs and is not related to the client's exposure to a gasoline-powered pressure washer.
4. While explaining an illness to a 10-year-old, what should the nurse keep in mind about the cognitive development at this age?
- A. They are able to make simple associations of ideas
- B. They are able to think logically in organizing facts
- C. Interpretation of events originates from their own perspective
- D. Conclusions are based on previous experiences
Correct answer: B
Rationale: Correct answer: At the age of 10, children are in the stage of concrete operational thought, where they can think logically and organize facts. Choice A is incorrect as simple associations of ideas are more characteristic of earlier developmental stages. Choice C is incorrect as while children at this age are developing perspective-taking skills, their interpretations are not solely limited to their own perspective. Choice D is incorrect as while previous experiences influence their thinking, the ability to think logically and organize facts is more prominent in this stage of cognitive development.
5. 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.
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