HESI LPN
Community Health HESI Study Guide
1. Which finding would be the most characteristic of an acute episode of reactive airway disease?
- A. Auditory gurgling
- B. Inspiratory laryngeal stridor
- C. Auditory expiratory wheezing
- D. Frequent dry coughing
Correct answer: C
Rationale: The correct answer is C: Auditory expiratory wheezing. Expiratory wheezing is a common sign of reactive airway disease, such as asthma, where airways are constricted, making it difficult to expel air from the lungs. Choices A, B, and D are incorrect as they are not typically associated with reactive airway disease. Auditory gurgling may suggest airway secretions or fluid accumulation, inspiratory laryngeal stridor indicates upper airway obstruction, and frequent dry coughing is more commonly seen in conditions like upper respiratory infections or postnasal drip.
2. What is the measure of the number of existing cases of a disease in a specific population at a given time?
- A. Incidence
- B. Prevalence
- C. Mortality rate
- D. Morbidity rate
Correct answer: B
Rationale: Prevalence is the correct answer as it refers to the number of existing cases of a disease in a specific population at a given time. Incidence, on the other hand, refers to the number of new cases of a disease in a defined population over a specific period. Mortality rate is the measure of the number of deaths in a particular population due to a specific cause, while morbidity rate is the frequency of a disease in a specific population.
3. The healthcare provider would expect which eating disorder to have the greatest fluctuations in potassium?
- A. Binge eating disorder
- B. Anorexia nervosa
- C. Bulimia
- D. Purge syndrome
Correct answer: C
Rationale: The correct answer is C: Bulimia. Bulimia involves cycles of binge eating and purging, where individuals may induce vomiting or use laxatives and diuretics. These purging behaviors can lead to significant fluctuations in potassium levels due to electrolyte imbalances caused by excessive loss of potassium through vomiting and purging. In contrast, Binge eating disorder (A) does not involve purging behaviors, so it is less likely to cause significant potassium fluctuations. Anorexia nervosa (B) is characterized by severe food restriction rather than purging, leading to a different pattern of electrolyte imbalances. Purge syndrome (D) is not a recognized eating disorder and is not associated with specific patterns of potassium fluctuations seen in bulimia.
4. The nurse is assigned to a newly delivered woman with HIV/AIDS. The student asks the nurse about how it is determined that a person has AIDS other than a positive HIV test. The nurse responds:
- A. The complaints of at least 3 common findings.
- B. The absence of any opportunistic infection.
- C. CD4 lymphocyte count is less than 200.
- D. Developmental delays in children.
Correct answer: C
Rationale: The correct answer is C. A CD4 count less than 200 cells/mm³ is a diagnostic criterion for AIDS. Choices A, B, and D are incorrect. Choice A is vague and does not reflect the diagnostic criteria for AIDS. Choice B is not accurate, as the presence of opportunistic infections, not their absence, is indicative of AIDS. Choice D is unrelated to the diagnosis of AIDS in adults.
5. During a home visit for a family with a new baby, what should the nurse assess first?
- A. feeding patterns
- B. sleeping arrangements
- C. support system
- D. immunization status
Correct answer: A
Rationale: Assessing feeding patterns is the priority during a home visit for a family with a new baby because it is crucial for the health and growth of the newborn. By evaluating the feeding patterns, the nurse can ensure that the baby is receiving adequate nutrition and address any feeding issues promptly. While sleeping arrangements, support system, and immunization status are important aspects to assess during a home visit, they are not as critical as ensuring the newborn's nutritional needs are being met.
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