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Community Health HESI Study Guide
1. Epidemiology is directly concerned with which of the following?
- A. factors influencing occurrence and distribution of diseases, defects, disability, or death of groups of individuals
- B. vital health statistics
- C. environmental sanitation
- D. treatment of a communicable disease
Correct answer: A
Rationale: Corrected Rationale: Epidemiology is the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to the control of health problems. It focuses on identifying and understanding the factors that influence the occurrence and distribution of diseases, defects, disability, or death of groups of individuals. Therefore, the correct answer is A. Choice B, vital health statistics, is not the primary focus of epidemiology. While vital health statistics may be used in epidemiological studies, it is not the direct concern of epidemiology. Choice C, environmental sanitation, although important for public health, is not the main focus of epidemiology. Epidemiology is more concerned with the factors influencing disease occurrence and distribution, rather than environmental sanitation. Choice D, treatment of a communicable disease, is more related to clinical medicine rather than epidemiology. Epidemiology is more focused on prevention, control, and understanding the patterns and causes of diseases rather than their treatment.
2. What is the process of enabling people to increase control over and improve their health known as?
- A. Health promotion
- B. Disease prevention
- C. Rehabilitation
- D. Health education
Correct answer: A
Rationale: The correct answer is A: Health promotion. Health promotion focuses on empowering individuals to take control of their health by promoting healthy behaviors, lifestyles, and environments. It aims to prevent illnesses and enhance overall well-being. Choices B, C, and D are incorrect because they do not fully encompass the concept of empowering individuals to improve their health. Disease prevention specifically targets avoiding specific illnesses, rehabilitation focuses on restoring health after an illness or injury, and health education primarily involves imparting knowledge about health-related topics.
3. What does the infant mortality rate measure?
- A. dying for every thousand of the population
- B. dying from 0-5 years old in every thousand population
- C. dying in the first 4 weeks in every thousand children born alive that year
- D. dying before 1 year old in every thousand children born alive that year
Correct answer: D
Rationale: The infant mortality rate measures the number of deaths occurring before 1 year old per 1000 live births. This is a crucial indicator of a population's health status and access to healthcare for infants. Choices A, B, and C are incorrect because the infant mortality rate specifically focuses on deaths within the first year of life, not the entire population or different age ranges.
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. A client with HIV/AIDS is receiving zidovudine (Retrovir). The nurse should monitor the client for which of the following adverse effects?
- A. Hyperglycemia
- B. Anemia
- C. Hypertension
- D. Hypercalcemia
Correct answer: B
Rationale: The correct answer is B: Anemia. Zidovudine (Retrovir) can cause bone marrow suppression, leading to anemia. Monitoring for signs of anemia, such as fatigue, pallor, and shortness of breath, is crucial. Choice A, Hyperglycemia, is not a common adverse effect of zidovudine. Choice C, Hypertension, is not directly associated with zidovudine use. Choice D, Hypercalcemia, is also not a typical adverse effect of zidovudine.
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