HESI RN
HESI Medical Surgical Exam
1. What is the most common side effect of diuretics such as furosemide (Lasix)?
- A. Hypokalemia.
 - B. Hyperkalemia.
 - C. Hypernatremia.
 - D. Hyponatremia.
 
Correct answer: A
Rationale: The correct answer is 'Hypokalemia.' Diuretics like furosemide increase the excretion of potassium, leading to hypokalemia as a common side effect. Hyperkalemia (choice B) is the opposite condition characterized by high potassium levels, which is not typically associated with furosemide use. Hypernatremia (choice C) is increased sodium levels, while hyponatremia (choice D) is decreased sodium levels, neither of which are the most common side effects of furosemide. Therefore, choice A is the best answer.
2. Which of the following assessments is the most important for a patient receiving IV potassium?
- A. Respiratory rate
 - B. Heart rate
 - C. Blood pressure
 - D. Oxygen saturation
 
Correct answer: C
Rationale: The most important assessment for a patient receiving IV potassium is monitoring blood pressure. IV potassium can cause significant changes in cardiac function, leading to adverse effects such as arrhythmias and cardiac arrest. While respiratory rate, heart rate, and oxygen saturation are important parameters to monitor in clinical practice, blood pressure takes precedence in patients receiving IV potassium due to its direct impact on cardiovascular function. Changes in blood pressure can be an early indicator of potassium-induced cardiac complications, making it crucial to monitor closely during administration.
3. A client has just regained bowel sounds after undergoing surgery. The physician has prescribed a clear liquid diet for the client. Which of the following items should the nurse ensure is available in the client’s room before allowing the client to drink?
- A. Straw
 - B. Napkin
 - C. Oxygen saturation monitor
 - D. Suction equipment
 
Correct answer: D
Rationale: After surgery, when a client has just regained bowel sounds and is prescribed a clear liquid diet, the nurse needs to consider the possibility of impaired swallow reflexes due to anesthesia effects, leading to an increased risk of aspiration. Despite checking the gag and swallow reflexes before offering fluids, having suction equipment readily available in the client's room is essential to manage any potential aspiration risk. Therefore, the correct answer is suction equipment (choice D). Choices A, B, and C are incorrect because while a straw, napkin, and oxygen saturation monitor may be useful in other situations, they are not directly related to managing the risk of aspiration associated with offering fluids to a client post-surgery.
4. A client with overflow incontinence needs assistance with elimination. What intervention should the nurse include in the plan of care?
- A. Stroke the medial aspect of the thigh.
 - B. Use intermittent catheterization.
 - C. Provide digital anal stimulation.
 - D. Use the Valsalva maneuver.
 
Correct answer: D
Rationale: In clients with overflow incontinence, the voiding reflex arc is impaired. The Valsalva maneuver, which involves holding the breath and bearing down as if to defecate, can help initiate voiding by applying mechanical pressure. Options A and C (stroking the thigh or anal stimulation) rely on an intact reflex arc to trigger elimination and are not effective for clients with overflow incontinence. Intermittent catheterization (Option B) is a last resort due to the high risk of infection and should only be considered if other interventions fail.
5. The patient is receiving sulfadiazine. The healthcare provider knows that this patient’s daily fluid intake should be at least which amount?
- A. 1000 mL/day
 - B. 1200 mL/day
 - C. 2000 mL/day
 - D. 2400 mL/day
 
Correct answer: C
Rationale: Sulfadiazine may lead to crystalluria, a condition where crystals form in the urine. Adequate fluid intake helps prevent this adverse effect by ensuring urine is dilute enough to prevent crystal formation. The recommended daily fluid intake for a patient receiving sulfadiazine is at least 2000 mL/day. Choices A, B, and D are incorrect because they do not provide a sufficient amount of fluid intake to prevent crystalluria in patients on sulfadiazine.
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