HESI LPN
Community Health HESI Practice Exam
1. A child and his family were exposed to Mycobacterium tuberculosis about 2 months ago. To confirm the presence or absence of an infection, it is most important for all family members to have a
- A. Chest x-ray
- B. Blood culture
- C. Sputum culture
- D. PPD intradermal test
Correct answer: D
Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.
2. In this municipality, what should the nursing health care plan focus on?
- A. Rehabilitative services
- B. All of these services
- C. Health promotion and disease prevention
- D. Curative services
Correct answer: C
Rationale: In this municipality, the nursing health care plan should primarily focus on health promotion and disease prevention. This approach addresses the underlying causes of health problems, promotes overall well-being, and helps prevent illnesses before they occur. While rehabilitative and curative services are important, health promotion and disease prevention are crucial for fostering a healthier community in the long term. Therefore, choices A, B, and D are not the best options as they do not prioritize preventing health issues at the root cause.
3. A client with a history of deep vein thrombosis (DVT) is receiving warfarin (Coumadin). The nurse should monitor the client for which of the following laboratory values?
- A. Prothrombin time (PT)
- B. Serum potassium
- C. Blood urea nitrogen (BUN)
- D. White blood cell count (WBC)
Correct answer: A
Rationale: The correct answer is A: Prothrombin time (PT). Prothrombin time is monitored to assess the effectiveness of warfarin therapy. Warfarin is an anticoagulant medication that works by inhibiting the synthesis of vitamin K-dependent clotting factors, including factors II, VII, IX, and X. Monitoring the PT helps ensure that the client's blood is clotting within the desired therapeutic range to prevent complications such as recurrent DVT or excessive bleeding. Choices B, C, and D are incorrect because serum potassium, blood urea nitrogen, and white blood cell count are not directly related to monitoring warfarin therapy in a client with a history of DVT.
4. 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.
5. Health activities are designed to:
- A. prevent people from being exposed to germs
- B. ignore spiritual factors as they can confuse medical issues
- C. increase communities' control over their health and well-being
- D. ensure that the community health nurse leads health programs
Correct answer: C
Rationale: Health activities are structured to enhance communities' autonomy and influence over their health and well-being, aiming to empower them to make informed choices and take control of their health. Choice A is incorrect as health activities encompass a broader scope beyond just preventing exposure to germs. Choice B is incorrect because spiritual factors are crucial components that should not be disregarded in healthcare. Choice D is incorrect as health activities are not solely about the community health nurse being in charge, but about empowering the community as a whole.
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