HESI LPN
Community Health HESI Practice Exam
1. Which bioterrorism agent poses a high risk for use as a potential biological weapon due to its ability to be readily transmitted through several portals of entry?
- A. Anthrax.
- B. Smallpox.
- C. Botulism.
- D. Tularemia.
Correct answer: A
Rationale: The correct answer is Anthrax. Anthrax is a high-risk bioterrorism agent because it can be readily transmitted through multiple portals of entry such as inhalation, ingestion, or skin contact. This makes it a significant concern for use as a biological weapon. Smallpox, though highly contagious, is not known for multiple portals of entry like Anthrax. Botulism is a potent toxin but is not as easily transmissible through various routes as Anthrax. Tularemia, while a serious bacterial infection, does not have the same ease of transmission through multiple portals of entry as Anthrax.
2. A 16-year-old client is admitted to a psychiatric unit with a diagnosis of attempted suicide. The nurse is aware that the most frequent cause for suicide in adolescents is
- A. Progressive failure to adapt
- B. Feelings of anger or hostility
- C. Reunion wish or fantasy
- D. Feelings of alienation or isolation
Correct answer: D
Rationale: Feelings of alienation or isolation are common triggers for suicidal behavior in adolescents. This sense of being disconnected or isolated from others can lead to despair and hopelessness, increasing the risk of suicidal ideation. Choices A, B, and C are less commonly associated with suicide in adolescents. Progressive failure to adapt may contribute to stress, but it is not typically the primary cause of suicide. Feelings of anger or hostility, while negative emotions, do not always lead to suicidal behavior in adolescents. Reunion wish or fantasy is not a recognized primary cause of suicide in this age group.
3. While performing an initial assessment on a newborn following a breech delivery, the nurse suspects hip dislocation. Which of the following is most suggestive of the abnormality?
- A. Flexion of lower extremities
- B. Negative Ortolani response
- C. Lengthened leg of affected side
- D. Irregular hip symmetry
Correct answer: D
Rationale: Irregular hip symmetry, such as asymmetry in the gluteal folds, is a common sign of hip dislocation in newborns. This finding indicates a potential abnormality in hip development and requires further evaluation and possible treatment. Choices A, B, and C are incorrect. Flexion of lower extremities is a normal newborn reflex, the Ortolani response is used to detect hip dysplasia rather than hip dislocation, and a lengthened leg of the affected side is not typically associated with hip dislocation in newborns.
4. 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.
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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