HESI LPN
Community Health HESI Study Guide
1. From January 1 to 15, 1996, there were 8 cases of Tetanus neonatorum in San Lazaro Hospital. There were two deaths. What is the case fatality ratio of this disease?
- A. 20%
- B. 30%
- C. 28%
- D. 25%
Correct answer: D
Rationale: The case fatality ratio is calculated as (deaths/cases) * 100. In this case, there were 2 deaths out of 8 cases. Therefore, the calculation is (2/8) * 100 = 25%. Choices A, B, and C are incorrect as they do not match the correct calculation.
2. An example of individual influences on health status would be:
- A. Cigarette smoking
- B. A parent with adult-onset diabetes
- C. Exposure to toxic substances in the workplace
- D. All of the above
Correct answer: D
Rationale: The correct answer is 'D' because all the listed factors - cigarette smoking, a parent with adult-onset diabetes, and exposure to toxic substances in the workplace - can individually influence a person's health status. Cigarette smoking directly impacts health by increasing the risk of various diseases. Having a parent with adult-onset diabetes can also influence one's health due to genetic predisposition and lifestyle factors. Exposure to toxic substances in the workplace can lead to health issues. Choices A, B, and C are not mutually exclusive but rather represent different aspects of individual influences on health status, making 'D' the most comprehensive and accurate answer.
3. The nurse is teaching a community group about risks of cardiovascular disease. Several clients ask the nurse to determine their risk. Which client should the nurse identify as having the greatest risk for cardiovascular disease?
- A. A male with a serum cholesterol level of 199 mg/dl.
- B. A female with a serum cholesterol level of 201 mg/dl.
- C. A male with a low-density lipoprotein (LDL) level of 200 mg/dl.
- D. A female with a low-density lipoprotein (LDL) level of 160 mg/dl.
Correct answer: C
Rationale: The correct answer is C. A male with a high LDL level (200 mg/dl) has a significant risk for cardiovascular disease. High levels of LDL cholesterol are associated with an increased risk of atherosclerosis and heart disease. Choices A, B, and D have serum cholesterol levels that are slightly elevated but are not as specific or directly linked to cardiovascular risk as high LDL levels. Therefore, the client with the high LDL level is at the greatest risk for cardiovascular disease.
4. A client with a fractured femur is in Buck's traction. The nurse should assess for which of the following complications?
- A. Foot drop
- B. Urinary retention
- C. Constipation
- D. Muscle spasms
Correct answer: A
Rationale: Corrected Rationale: Foot drop is a potential complication of prolonged immobility and improper positioning in traction. In Buck's traction, the lower extremity is suspended to immobilize and align the fractured femur. Prolonged suspension of the leg in traction can lead to nerve damage, specifically to the common peroneal nerve, resulting in foot drop. Urinary retention, constipation, and muscle spasms are not directly associated with Buck's traction and a fractured femur.
5. The nurse is planning care for a client with increased intracranial pressure. The best position for this client is
- A. Trendelenburg
- B. Prone
- C. Semi-Fowler's
- D. Side-lying with head flat
Correct answer: C
Rationale: The correct answer is C, Semi-Fowler's. This position helps to reduce intracranial pressure by promoting venous drainage from the head while maintaining adequate oxygenation. Option A, Trendelenburg position, is incorrect as it involves placing the patient with the head lower than the body, which can increase intracranial pressure. Option B, Prone position, is also incorrect as it involves lying on the stomach, which can further elevate intracranial pressure. Option D, Side-lying with head flat, does not provide the same benefits as the Semi-Fowler's position in terms of promoting venous drainage and maintaining oxygenation in a client with increased intracranial pressure.
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