HESI LPN
Medical Surgical HESI 2023
1. What pathophysiologic process is producing the symptoms of gout in a client with sudden onset of big toe joint pain and swelling?
- A. Deposition of crystals in the synovial space of the joints produces inflammation and irritation.
- B. Degeneration of joint cartilage causing inflammation.
- C. Infection of the joint space leading to inflammation.
- D. Increased synovial fluid causing joint swelling and pain.
Correct answer: A
Rationale: The correct answer is A. Gout is characterized by the deposition of uric acid crystals in the synovial fluid of joints, which triggers inflammation and pain. This process is known as crystal-induced arthritis. Choice B is incorrect as gout does not involve degeneration of joint cartilage. Choice C is incorrect as gout is not caused by an infection of the joint space. Choice D is incorrect as gout does not result from increased synovial fluid but rather from the deposition of uric acid crystals.
2. The healthcare provider prescribes Cytovene 375 mg every 12 hours to infuse over 90 minutes. The pharmacy delivers Cytovene 375 mg in a 150 mL IV bag. How many ml/hour should the nurse program the infusion pump?
- A. 50 ml/hour.
- B. 75 ml/hour.
- C. 100 ml/hour.
- D. 125 ml/hour.
Correct answer: C
Rationale: To infuse 150 mL over 90 minutes, the pump should be set to 100 ml/hour (150 mL / 1.5 hours). This rate ensures that the medication is delivered at the proper rate as prescribed. Choices A, B, and D are incorrect because they do not reflect the correct calculation based on the volume of the IV bag and the infusion duration provided in the question.
3. The nurse instructs the mother of a child with a ventricular septal defect that she can expect the child to become cyanotic when the child does what?
- A. Experiences an elevation in temperature.
- B. Sleeps on the left side.
- C. Cries vigorously.
- D. Eats.
Correct answer: C
Rationale: The correct answer is C: Cries vigorously. When the child cries vigorously, it increases the pressure in the right ventricle, allowing unoxygenated blood to enter the circulating volume, leading to cyanosis. This occurs due to the shunting of blood from the right side of the heart to the left side through the ventricular septal defect. Choices A, B, and D are incorrect because they do not directly impact the pressure in the right ventricle, which is crucial in causing cyanosis in this scenario.
4. An unlicensed assistive personnel (UAP) reports to the nurse that a client with a postoperative wound infection has a temperature of 103.8°F, blood pressure 90/70, pulse 124 beats/min, and respirations of 28 breaths/min. When the nurse assesses the client's findings, they include a mottled skin appearance and confusion. Which action should the nurse take first?
- A. Obtain a wound specimen for culture.
- B. Initiate an infusion of intravenous (IV) fluids.
- C. Transfer the client to the ICU.
- D. Assess the client's core temperature.
Correct answer: B
Rationale: The correct action for the nurse to take first is to initiate an infusion of intravenous (IV) fluids. In this scenario, the client is showing signs of sepsis, indicated by a high temperature, low blood pressure, rapid heart rate, and increased respiratory rate. Mottled skin appearance and confusion are also signs of poor perfusion. Initiating IV fluids is crucial in treating sepsis to maintain blood pressure and perfusion. Obtaining a wound specimen for culture (Choice A) can be important but is not the priority at this moment. Transferring the client to the ICU (Choice C) can be considered after stabilizing the client. Assessing the client's core temperature (Choice D) is not the immediate priority compared to addressing the signs of sepsis and poor perfusion.
5. What most influences the severity of respiratory distress syndrome (RDS)?
- A. Poor cough and gag reflex
- B. The gestational age at birth
- C. Administering high concentrations of oxygen
- D. The sex of the infant
Correct answer: B
Rationale: The correct answer is B. The gestational age at birth most influences the severity of respiratory distress syndrome (RDS). RDS is caused by a deficiency of surfactant and it occurs almost exclusively in preterm, low-birth weight infants. Therefore, the gestational age at birth is a key factor in determining the likelihood and severity of RDS. Choices A, C, and D are incorrect as they do not directly relate to the primary factor influencing the severity of RDS.
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