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. The client with Raynaud's phenomenon would benefit most by which teaching intervention?
- A. Stop smoking
- B. Keep feet dry
- C. Reduce stress
- D. Avoid caffeine
Correct answer: A
Rationale: The correct answer is A: Stop smoking. Smoking causes vasoconstriction, worsening the symptoms of Raynaud's phenomenon. Quitting smoking is crucial in managing this condition effectively. Choices B, C, and D are not as directly related to the pathophysiology of Raynaud's phenomenon. While keeping feet dry and reducing stress can be beneficial for overall health, they are not as directly linked to managing Raynaud's phenomenon as smoking cessation.
3. When the nurse identifies what appears to be ventricular tachycardia on the cardiac monitor of a client being evaluated for possible myocardial infarction, the first action the nurse should perform is to
- A. Begin cardiopulmonary resuscitation
- B. Prepare for immediate defibrillation
- C. Notify the 'Code' team and healthcare provider
- D. Assess airway, breathing, and circulation
Correct answer: D
Rationale: The correct first action for the nurse to take when identifying what appears to be ventricular tachycardia in a client being evaluated for possible myocardial infarction is to assess the client's airway, breathing, and circulation. This step is crucial to determine the client's stability and the need for immediate intervention. Beginning cardiopulmonary resuscitation or preparing for immediate defibrillation without first assessing the airway, breathing, and circulation could delay potentially life-saving interventions. Notifying the 'Code' team and healthcare provider should come after ensuring the client's immediate needs are addressed.
4. Community health nurses help influence the health of communities through which of the following actions?
- A. legislating health behavior
- B. recording health status of individuals in a similar geographic region
- C. influencing health status and behavior, and engaging in health promotion
- D. none of the above
Correct answer: C
Rationale: Community health nurses play a crucial role in influencing the health of communities by engaging in health promotion activities and influencing health behaviors. Choice A is incorrect as community health nurses do not legislate health behavior but rather educate and promote healthy behaviors. Choice B is incorrect as while community health nurses may record health data, their main focus is on proactive health promotion and intervention, not just documenting health status. Choice D is incorrect because community health nurses actively work to influence health status and behaviors.
5. In reviewing the assessment data of a client suspected of having diabetes insipidus, the nurse expects which of the following after a water deprivation test?
- A. Increased edema and weight gain
- B. Unchanged urine specific gravity
- C. Rapid protein excretion
- D. Decreased blood potassium
Correct answer: B
Rationale: After a water deprivation test in a client suspected of having diabetes insipidus, the nurse would expect the urine specific gravity to remain unchanged. This occurs because in diabetes insipidus, the kidneys are unable to concentrate urine, leading to a low urine specific gravity even after water deprivation. Choices A, C, and D are incorrect. Increased edema and weight gain are not typical findings in diabetes insipidus. Rapid protein excretion is not directly related to the condition, and decreased blood potassium is not a common outcome of a water deprivation test for diabetes insipidus.
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