HESI LPN
Community Health HESI Exam
1. Which of the following measures the frequency of new cases of the phenomenon during a given period of time?
- A. prevalence rate
- B. proportionate mortality rate
- C. case fatality rate
- D. incidence rate
Correct answer: D
Rationale: The correct answer is D, incidence rate. Incidence rate measures the frequency of new cases of a phenomenon, providing important information about the risk of developing the condition. Prevalence rate (choice A) reflects both old and new cases, proportionate mortality rate (choice B) is the proportion of deaths due to a specific cause, and case fatality rate (choice C) measures the proportion of deaths among confirmed cases, not just new cases.
2. A client has been admitted for meningitis. In reviewing the laboratory analysis of cerebrospinal fluid (CSF), the nurse would expect to note
- A. High protein
- B. Clear color
- C. Elevated sed rate
- D. Increased glucose
Correct answer: A
Rationale: High protein levels in the cerebrospinal fluid are indicative of bacterial meningitis, as the presence of bacteria in the CSF leads to increased protein production. Elevated protein levels can be seen in inflammatory conditions like meningitis. Choice B, clear color, is not expected in meningitis as it is typically associated with cloudy or turbid CSF. Elevated sed rate (choice C) and increased glucose (choice D) are not typically associated with the laboratory findings seen in meningitis.
3. BCG vaccine is supplied in:
- A. freeze-dried form in a sealed glass ampule
- B. liquid form in a sealed glass ampule
- C. liquid form in a vial
- D. both 2 and 3
Correct answer: A
Rationale: The correct answer is A. BCG vaccine is commonly supplied in freeze-dried form, not in liquid form. Therefore, choices B and C are incorrect. Option D is also incorrect as the vaccine is not supplied in liquid form in a glass ampule.
4. What influences health status?
- A. lifestyle choices and community resources
- B. availability of health technology like diagnostic machines
- C. presence of toxic environmental conditions
- D. all of the above
Correct answer: D
Rationale: Health status is influenced by a combination of lifestyle choices, community resources, health technology like diagnostic machines, and environmental conditions. Each of these factors plays a role in determining an individual's overall health. Choice A is correct as lifestyle choices (such as diet, exercise, and smoking habits) and access to community resources (like healthcare facilities, support groups, and recreational spaces) are important determinants of health. Choice B is correct as the availability of health technology, including diagnostic machines, can impact early detection and treatment of health conditions. Choice C is correct as exposure to toxic environmental conditions (such as pollution, contaminated water, or hazardous waste) can have adverse effects on health. Therefore, the correct answer is D because all of these factors collectively influence health status.
5. Which of the following would be the best strategy for the nurse to use when teaching insulin injection techniques to a newly diagnosed client with diabetes?
- A. Provide written pre and post tests
- B. Ask questions during practice
- C. Allow another diabetic to assist
- D. Observe a return demonstration
Correct answer: D
Rationale: The best strategy for the nurse to use when teaching insulin injection techniques to a newly diagnosed client with diabetes is to observe a return demonstration. This method ensures that the client can correctly perform the technique. Providing written pre and post tests (choice A) may assess knowledge but not application. Asking questions during practice (choice B) may help with understanding but not necessarily with the actual performance. Allowing another diabetic to assist (choice C) may provide peer support but does not guarantee correct technique demonstration.
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