HESI LPN
HESI PN Exit Exam 2023
1. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?
- A. Ointment
- B. Lotion
- C. Paste
- D. Gel
Correct answer: B
Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.
2. Which condition is most commonly associated with a "bull's eye" rash?
- A. Lyme disease
- B. Rocky Mountain spotted fever
- C. Syphilis
- D. Toxoplasmosis
Correct answer: A
Rationale: The correct answer is A: Lyme disease. The "bull's eye" rash, or erythema migrans, is a hallmark of early Lyme disease, caused by the bacterium Borrelia burgdorferi. Choice B, Rocky Mountain spotted fever, presents with a different type of rash. Choice C, Syphilis, typically presents with a painless ulcer and rash but not a "bull's eye" rash. Choice D, Toxoplasmosis, does not typically present with a "bull's eye" rash.
3. A child with glomerulonephritis is admitted in the acute edematous phase. Based on this diagnosis, which nursing intervention should the PN plan to include in the child's plan of care?
- A. Recommend parents bring favorite snacks
- B. Encourage ambulation daily to the playroom
- C. Measure blood pressure every 4 to 6 hours
- D. Offer a selection of fresh fruit for each meal
Correct answer: C
Rationale: The correct answer is to measure blood pressure every 4 to 6 hours. In glomerulonephritis, monitoring blood pressure is crucial as hypertension is a common complication. This helps in assessing the child's condition and response to treatment. Choice A, recommending parents bring favorite snacks, is not related to managing glomerulonephritis. Choice B, encouraging ambulation daily to the playroom, may not be appropriate during the acute edematous phase when the child may be experiencing fluid overload. Choice D, offering a selection of fresh fruit for each meal, is not directly relevant to managing the complications of glomerulonephritis.
4. A client is recovering from a right-sided mastectomy and is concerned about lymphedema. What should the nurse include in the discharge teaching to minimize this risk?
- A. Encourage wearing tight clothing on the affected arm.
- B. Advise against lifting heavy objects with the affected arm.
- C. Recommend the client sleep on the affected side.
- D. Suggest frequent massage of the affected arm.
Correct answer: B
Rationale: The correct answer is B: Advise against lifting heavy objects with the affected arm. Lifting heavy objects with the affected arm can increase the risk of lymphedema. It is important for clients to avoid activities that strain the affected arm to minimize the risk of developing lymphedema. Choices A, C, and D are incorrect because wearing tight clothing on the affected arm, sleeping on the affected side, and frequent massage of the affected arm can potentially worsen lymphedema or impede the recovery process. Tight clothing can impede lymphatic flow, sleeping on the affected side can restrict circulation, and frequent massage can exacerbate swelling in the arm.
5. A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the nurse reinforce about the action of this adjuvant pain modality?
- A. The discharge of electricity will distract the client's focus from the pain
- B. An infusion of medication in the spinal canal will block pain perception
- C. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus
- D. A mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain
Correct answer: D
Rationale: The correct answer is D. TENS works by delivering a mild electrical stimulus to the skin, which can help close the 'gates' in the nervous system to block pain signals from reaching the brain, thus reducing pain perception. Choice A is incorrect because TENS does not distract from pain but rather helps manage it. Choice B is incorrect as it describes a different pain management technique involving medication in the spinal canal. Choice C is incorrect because TENS acts peripherally on nerve conduction rather than dulling pain perception in the cerebral cortex.
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