HESI LPN
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. The nurse is screening children at a local community health clinic for infectious diseases. Which child is at highest risk for hepatitis B virus (HBV)?
- A. A newborn.
- B. A 3-year-old.
- C. A 7-year-old.
- D. An 11-year-old.
Correct answer: A
Rationale: The correct answer is A: a newborn. Newborns are at the highest risk for HBV due to potential transmission from the mother. The hepatitis B virus can be transmitted from an infected mother to her baby during childbirth. Choices B, C, and D are incorrect because newborns have a higher risk due to this mode of transmission, making them more vulnerable compared to older children.
3. During an initial clinic visit, the nurse is taking the history for a client who wants to confirm her pregnancy. The client's last child has a history of low-birth-weight (LBW). Which additional finding is most important for the nurse to consider?
- A. Cigarette smoking.
- B. African American ethnicity.
- C. Poor nutritional status.
- D. Limited maternal education.
Correct answer: A
Rationale: The correct answer is A: Cigarette smoking. Cigarette smoking is a significant risk factor for low birth weight. Smoking during pregnancy reduces the amount of oxygen available to the baby, leading to LBW. Choice B, African American ethnicity, while it may be a risk factor, is not as directly linked to LBW as cigarette smoking. Choice C, poor nutritional status, can contribute to LBW but is not as significant as cigarette smoking in this case. Choice D, limited maternal education, is an important social determinant of health but is not as directly related to LBW as cigarette smoking.
4. Which level of care serves as a referral center for primary health facilities?
- A. Secondary level health care
- B. Primary health care
- C. Tertiary level care
- D. Intermediate level care
Correct answer: A
Rationale: Secondary level health care is the correct answer as it serves as a referral center for primary health facilities. Primary health care refers to basic health services provided in the community setting. Tertiary level care involves specialized services like hospitals with advanced medical equipment and expertise. Intermediate level care is not a standard term in the hierarchy of health care services.
5. A client with chronic renal failure is receiving peritoneal dialysis. The nurse should assess the client for which of the following complications?
- A. Hypertension
- B. Hyperglycemia
- C. Hypokalemia
- D. Hypernatremia
Correct answer: B
Rationale: The correct answer is B: Hyperglycemia. In peritoneal dialysis, hyperglycemia can occur due to the glucose content of the dialysate solution. This high glucose concentration can lead to increased blood sugar levels in the client. Option A, Hypertension, is a common complication in chronic renal failure but is not directly related to peritoneal dialysis. Option C, Hypokalemia, is more commonly associated with loop diuretics or inadequate potassium intake. Option D, Hypernatremia, is more often seen in conditions of excessive sodium intake or water loss, rather than in peritoneal dialysis.
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