HESI LPN
Community Health HESI Practice Questions
1. 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.
2. A young child is admitted for treatment of lead poisoning. The nurse recognizes that the most serious effect of chronic lead poisoning is
- A. Central nervous system damage
- B. Moderate anemia
- C. Renal tubule damage
- D. Growth impairment
Correct answer: A
Rationale: Corrected Rationale: Chronic lead poisoning can lead to severe and irreversible damage to the central nervous system, including cognitive and developmental delays. Central nervous system damage is the most serious effect of chronic lead poisoning because it can have long-lasting consequences on a child's cognitive function and overall development. Moderate anemia (Choice B), renal tubule damage (Choice C), and growth impairment (Choice D) can also occur due to lead poisoning, but they are not as severe or potentially irreversible as the damage to the central nervous system.
3. What is a priority goal of involuntary hospitalization of the severely mentally ill client?
- A. Re-orientation to reality
- B. Elimination of symptoms
- C. Protection from harm to self or others
- D. Development of self-care skills
Correct answer: C
Rationale: The correct answer is C: 'Protection from harm to self or others.' Involuntary hospitalization is primarily aimed at ensuring the safety of the individual and others. Re-orientation to reality (choice A) may be a goal of treatment but not the primary goal of involuntary hospitalization. Elimination of symptoms (choice B) and development of self-care skills (choice D) are important aspects of treatment but are secondary to the immediate priority of ensuring safety in cases of severe mental illness.
4. Which individual has the highest risk of developing community-acquired pneumonia?
- A. A 40-year-old first-grade teacher who works with underprivileged children.
- B. A 75-year-old retired secretary with exercise-induced wheezing.
- C. A 60-year-old homeless person who is an alcoholic and smokes.
- D. A 35-year-old aerobics instructor who skips meals and eats only vegetables.
Correct answer: C
Rationale: The correct answer is the 60-year-old homeless person who is an alcoholic and smokes. This individual has the highest risk of developing community-acquired pneumonia due to factors such as homelessness, alcoholism, and smoking, which weaken the immune system and make them more susceptible to respiratory infections. Choice A is incorrect as working with underprivileged children, while potentially exposing the individual to various illnesses, does not directly increase the risk of pneumonia. Choice B is less likely as exercise-induced wheezing may suggest asthma but does not directly correlate with pneumonia risk. Choice D, an aerobics instructor who eats only vegetables and skips meals, does not have the same level of risk factors for pneumonia as the homeless person in choice C.
5. A client with a history of seizures is receiving phenytoin (Dilantin). The nurse should monitor the client for which of the following side effects?
- A. Hypertension
- B. Hyperglycemia
- C. Gingival hyperplasia
- D. Hypokalemia
Correct answer: C
Rationale: The correct answer is C: Gingival hyperplasia. Phenytoin can cause gingival hyperplasia, characterized by an overgrowth of gum tissue. It is important for the nurse to monitor the client for this side effect as it can lead to oral health issues. Choices A, B, and D are incorrect. Phenytoin does not typically cause hypertension, hyperglycemia, or hypokalemia as common side effects.
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