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. The nurse is assigned to a client with Parkinson's disease. Which findings would the nurse anticipate?
- A. Non-intention tremors and urgency with voiding
- B. Echolalia and a shuffling gait
- C. Muscle spasm and a bent-over posture
- D. Intention tremor and jerky movement of the elbows
Correct answer: B
Rationale: The correct answer is B. Echolalia (repeating others' words) and a shuffling gait are common symptoms of Parkinson's disease. These symptoms result from the degeneration of the basal ganglia in the brain that controls movement and speech. Choice A is incorrect because non-intention tremors are not typically associated with Parkinson's disease. Choice C is incorrect as muscle spasm and a bent-over posture are not classic manifestations of Parkinson's disease. Choice D is incorrect since intention tremors and jerky movement of the elbows are not characteristic of Parkinson's disease.
3. A client with rheumatoid arthritis is receiving methotrexate (Rheumatrex). The nurse should monitor the client for which of the following adverse effects?
- A. Leukopenia
- B. Hyperglycemia
- C. Hypertension
- D. Hypokalemia
Correct answer: A
Rationale: The correct answer is A: Leukopenia. Methotrexate, used in the treatment of rheumatoid arthritis, can lead to bone marrow suppression, resulting in leukopenia. This condition increases the risk of infections due to decreased white blood cell count. Choices B, C, and D are incorrect because methotrexate is not known to cause hyperglycemia, hypertension, or hypokalemia as its primary adverse effects.
4. The nurse is caring for a client on mechanical ventilation. When performing endotracheal suctioning, the nurse will avoid hypoxia by
- A. Inserting a fenestrated catheter with a whistle tip without suction
- B. Completing the suction pass in 30 seconds with a pressure of 150 mm Hg
- C. Hyperoxygenating with 100% O2 for 1 to 2 minutes before and after each suction pass
- D. Minimizing the suction pass to 60 seconds while slowly rotating the lubricated catheter
Correct answer: C
Rationale: Hyperoxygenating the client before and after suctioning helps prevent hypoxia by ensuring adequate oxygen levels during the procedure, which briefly interrupts the client's normal breathing pattern. Choice A is incorrect because inserting a fenestrated catheter with a whistle tip without suction would not prevent hypoxia. Choice B is incorrect as completing the suction pass in 30 seconds with a pressure of 150 mm Hg may lead to hypoxia. Choice D is incorrect as minimizing the suction pass to 60 seconds may not provide enough time for effective suctioning and could lead to hypoxia.
5. A community health nurse is conducting a neighborhood discussion group about disaster planning. What information regarding transmission of anthrax should the nurse provide to the group?
- A. Infection is acquired when anthrax spores enter a host.
- B. Mature anthrax bacteria live dormant on inanimate objects.
- C. Spores cannot survive for extended periods outside a living host.
- D. Anthrax is transmitted by respiratory droplets from person to person.
Correct answer: A
Rationale: The correct information the nurse should provide is that anthrax infection occurs when spores enter a host. Choice B is incorrect as mature anthrax bacteria do not live dormant on inanimate objects. Choice C is incorrect as anthrax spores can survive for extended periods outside a living host. Choice D is incorrect as anthrax is not transmitted by respiratory droplets from person to person.
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