HESI LPN
Medical Surgical HESI 2023
1. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
2. The nurse is teaching a client with gastroesophageal reflux disease (GERD) about dietary modifications. Which food should the client avoid?
- A. Applesauce
- B. White rice
- C. Coffee
- D. Bananas
Correct answer: C
Rationale: The correct answer is C: Coffee. Coffee should be avoided by clients with GERD as it can relax the lower esophageal sphincter, leading to an increase in GERD symptoms. Choices A, B, and D are not directly associated with worsening GERD symptoms and can be included in moderation in the diet of a client with GERD.
3. A woman with chronic osteoarthritis is complaining of knee pain. Which pathophysiological process is contributing to her pain?
- A. Inflammation of the synovial membrane.
- B. Degeneration of the cartilage in the joint.
- C. Joint inflammation occurs when chondrocyte injury destroys joint cartilage, producing osteophytes.
- D. Formation of uric acid crystals in the joint space.
Correct answer: C
Rationale: The correct answer is C. In osteoarthritis, the breakdown of cartilage in the joints leads to chondrocyte injury, which results in the destruction of joint cartilage and the production of osteophytes. This process causes joint inflammation and pain. Choice A is incorrect because osteoarthritis primarily involves the articular cartilage rather than the synovial membrane. Choice B is incorrect as it describes the degeneration of cartilage but does not explain the specific pathophysiological process contributing to pain in osteoarthritis. Choice D is incorrect as the formation of uric acid crystals is characteristic of gout, not osteoarthritis.
4. Following surgical repair of the bladder, a female client is being discharged from the hospital to home with an indwelling urinary catheter. Which instruction is most important for the nurse to provide to this client?
- A. Avoid coiling the tubing and keep it free of kinks.
- B. Cleanse the perineal area with soap and water twice daily.
- C. Keep the drainage bag lower than the level of the bladder.
- D. Drink 1,000 ml of fluids daily to irrigate the catheter.
Correct answer: C
Rationale: The most crucial instruction for a client with an indwelling urinary catheter post-bladder surgery is to keep the drainage bag positioned lower than the level of the bladder. This positioning prevents backflow of urine into the bladder, reducing the risk of infection. Choice A, avoiding coiling the tubing and keeping it free of kinks, is important to maintain proper flow but not as critical as ensuring the drainage bag is lower than the bladder. Choice B, cleansing the perineal area, is essential for overall hygiene but not directly related to catheter care instructions. Choice D, drinking fluids to irrigate the catheter, is not recommended as it may increase the risk of infection and should be guided by healthcare providers based on specific needs.
5. An older adult with chronic obstructive pulmonary disease (COPD) was recently admitted to the hospital with heart failure (HF). Which actions should the nurse take in providing care? (Select all that apply)
- A. Monitor electrolyte levels.
- B. Maintain pulse oximetry.
- C. Provide assistance with mobility.
- D. All of the Above
Correct answer: D
Rationale: In a patient with COPD and HF, monitoring electrolyte levels is essential due to potential imbalances caused by medications or fluid shifts. Maintaining pulse oximetry is crucial to assess oxygenation status in COPD and HF. Providing assistance with mobility helps prevent deconditioning and complications. Therefore, all the actions mentioned are necessary for comprehensive care in this scenario, making option D the correct answer. Choices A, B, and C are all important aspects of managing COPD and HF, ensuring holistic and effective care.
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