HESI RN
HESI Medical Surgical Specialty Exam
1. Why is lactated Ringer’s solution given to a patient experiencing vomiting and diarrhea?
- A. To increase interstitial and intracellular hydration
- B. To maintain plasma volume over time
- C. To pull water from the interstitial space into the extracellular fluid
- D. To replace water and electrolytes
Correct answer: D
Rationale: Lactated Ringer’s solution is an isotonic solution commonly used to replace water and electrolytes lost due to conditions like vomiting and diarrhea. It helps to restore fluid balance by replacing the lost volume and electrolytes. Option A is incorrect because hypotonic fluids, not lactated Ringer’s solution, increase interstitial and intracellular hydration. Option B is incorrect as colloidal solutions, not lactated Ringer’s solution, are used to maintain plasma volume over time. Option C is incorrect as hypertonic solutions, not lactated Ringer’s solution, pull water from the interstitial space into the extracellular fluid.
2. Which of the following is a characteristic symptom of multiple sclerosis (MS)?
- A. Muscle atrophy.
- B. Severe pain.
- C. Vision problems.
- D. Hearing loss.
Correct answer: C
Rationale: Vision problems are a characteristic symptom of multiple sclerosis (MS) due to demyelination of the optic nerve. This can lead to issues such as optic neuritis, blurred vision, double vision, or even total vision loss. Muscle atrophy (Choice A) is not a primary symptom of MS but can occur as a secondary effect of decreased mobility. Severe pain (Choice B) is not a typical symptom of MS, though some individuals may experience pain related to muscle spasms or other factors. Hearing loss (Choice D) is not commonly associated with MS unless there is an unrelated concurrent condition affecting the auditory system.
3. An older female client has normal saline infusing at 45 mL/hour. She complains of pain at the insertion site of the IV catheter. There is no redness or edema around the IV site. Which action should the nurse take?
- A. Determine which IV medications have recently been administered.
- B. Explain that without redness or edema, there is no need to re-start the IV.
- C. Consult with the healthcare provider about the best location to start a new IV.
- D. Convert the IV to a saline lock and continue to monitor the site.
Correct answer: D
Rationale: Converting the IV to a saline lock and continuing to monitor the site is the correct action in this scenario. When a client complains of pain at the IV insertion site without redness or edema, it may indicate phlebitis or irritation. Replacing the IV may not be necessary if there are no signs of infection or infiltration. Determining the IV medications administered or consulting with the healthcare provider to start a new IV are not immediate actions required for pain management at the insertion site. Therefore, the most appropriate intervention is to convert the IV to a saline lock and closely observe for any changes or complications.
4. The client with peripheral artery disease has been prescribed clopidogrel (Plavix). The nurse understands that more teaching is necessary when the client states which of the following?
- A. I should not be surprised if I bruise more easily or if my gums bleed a little when brushing my teeth.
- B. It is important to take this medicine with food to enhance its effectiveness and minimize stomach upset.
- C. I should stop taking Plavix if it makes me feel weak and dizzy.
- D. The doctor prescribed this medicine to make my platelets less likely to stick together and help prevent clots from forming.
Correct answer: C
Rationale: The correct answer is C. Weakness, dizziness, and headache are common adverse effects of Plavix and should be reported. It is essential to consult a physician before stopping Plavix as it plays a crucial role in preventing platelets from sticking together and forming clots. Choices A, B, and D are incorrect. Choice A is a common side effect of Plavix and does not indicate a need for further teaching. Choice B is incorrect because taking Plavix with or without food can affect its absorption and effectiveness. Choice D correctly explains the purpose of prescribing Plavix to prevent clot formation.
5. After a session of hemodialysis, the nurse should monitor the client for which of the following complications of hemodialysis?
- A. Hyperkalemia.
- B. Hypotension.
- C. Infection.
- D. Fever.
Correct answer: B
Rationale: The correct answer is 'B: Hypotension.' Hypotension is a common complication of hemodialysis because fluid removal during the process can lead to a drop in blood pressure. The nurse should closely monitor the client for signs of hypotension such as dizziness, lightheadedness, or a decrease in blood pressure readings. Choice 'A: Hyperkalemia' is incorrect because hemodialysis actually helps lower potassium levels by removing excess potassium from the blood. Choice 'C: Infection' is incorrect as it is not a direct complication of hemodialysis but rather a risk associated with invasive procedures. Choice 'D: Fever' is incorrect as fever is not a typical immediate post-hemodialysis complication unless an underlying infection is present.
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