HESI LPN
HESI PN Exit Exam
1. Which condition is characterized by a progressive loss of muscle strength due to an autoimmune attack on acetylcholine receptors?
- A. Myasthenia gravis
- B. Multiple sclerosis
- C. Amyotrophic lateral sclerosis
- D. Guillain-Barré syndrome
Correct answer: A
Rationale: The correct answer is A: Myasthenia gravis. Myasthenia gravis is characterized by muscle weakness caused by autoimmune attack on acetylcholine receptors at the neuromuscular junction. This results in impaired communication between nerves and muscles. Choice B, Multiple sclerosis, is a condition where the immune system attacks the protective myelin sheath covering the nerves in the central nervous system, leading to communication issues between the brain and the rest of the body. Choice C, Amyotrophic lateral sclerosis, is a progressive neurodegenerative disease affecting motor neurons in the brain and spinal cord, not involving acetylcholine receptors. Choice D, Guillain-Barré syndrome, is an acute condition where the immune system attacks the peripheral nerves, causing muscle weakness and paralysis, but it does not target acetylcholine receptors.
2. To accommodate a patient who is an Orthodox Jew, you would assure that her diet does not include which of the following?
- A. Any combination of meat and milk at the same meal
- B. Fish with scales
- C. Salmon
- D. Grape juice
Correct answer: A
Rationale: The correct answer is A. Orthodox Jewish dietary laws prohibit mixing meat and dairy in the same meal, so to accommodate an Orthodox Jew, you should ensure that their diet does not include any combination of meat and milk at the same meal. Choices B, C, and D are not prohibited in a kosher diet. Fish with scales, including salmon, are typically kosher, and grape juice is also permissible under kosher guidelines if certified. Therefore, options B, C, and D are acceptable in an Orthodox Jewish diet, while option A contradicts their dietary laws.
3. A nurse is reviewing the basal body temperature method with a couple. Which of the following statements would indicate that the teaching has been successful?
- A. I don't need to buy a special type of thermometer.
- B. I need to wait 5 minutes after smoking a cigarette before I take my temperature.
- C. I need to take my temperature before I get out of bed in the morning.
- D. I need to take my temperature at least once every day.
Correct answer: C
Rationale: The correct answer is C. Basal body temperature must be taken before getting out of bed in the morning to get an accurate reading, as even slight activity can raise body temperature and affect the results. Choice A is incorrect because a special type of thermometer is not required for basal body temperature measurement. Choice B is incorrect because smoking can affect body temperature, but the timing mentioned is not relevant to basal body temperature measurement. Choice D is incorrect because while it is essential to take the temperature consistently each day, the duration of temperature measurement is not specified, making this choice less specific compared to the correct answer.
4. According to the principle of asepsis, which situation should the PN consider to be sterile?
- A. A one-inch border around the edges of a sterile field set up in the operating room
- B. A sterile glove that the PN thinks might have touched hair
- C. A wrapped, unopened sterile 4x4 gauze pad placed on a damp table top
- D. An open sterile Foley catheter kit set up on a table at the PN's waist level
Correct answer: A
Rationale: According to the principle of asepsis, the one-inch border around the edges of a sterile field set up in the operating room is considered non-sterile, while the central area remains sterile. Therefore, the PN should consider the situation described in choice A to be sterile. Choice B is incorrect because a glove that may have touched hair is contaminated. Choice C is incorrect as a sterile item placed on a damp surface is considered contaminated. Choice D is incorrect as a sterile kit set up at the PN's waist level is prone to contamination.
5. After adding feeding solution to a client's tube feeding system as seen in the picture, what action should the PN take next?
- A. Remove the air from the solution bag
- B. Obtain a piston syringe and irrigation set
- C. Record the solution added as fluid intake
- D. Calculate the rate of flow of the solution
Correct answer: B
Rationale: After adding feeding solution, obtaining a piston syringe and irrigation set is necessary to flush the feeding tube and ensure patency before starting the feeding. This helps prevent blockages and ensures proper delivery of the nutritional solution. Option A is incorrect because removing air from the solution bag is not the immediate next step after adding the feeding solution. Option C is incorrect as recording the solution added as fluid intake is important but not the immediate next step. Option D is incorrect as calculating the rate of flow of the solution is not the next step after adding the feeding solution.
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