HESI RN
HESI RN CAT Exit Exam Questions
Question 1 of 5
Oxygen at liters/min per nasal cannula PRN difficult breathing is prescribed for a client with pneumonia. Which nursing intervention is effective in preventing oxygen toxicity?
Correct Answer: A
Rationale: The correct answer is A: Avoiding the administration of high levels of oxygen for extended periods. Oxygen toxicity can occur when high levels of oxygen are given for a prolonged period. It is important to monitor and adjust the oxygen levels as needed to prevent toxicity. Choice B is incorrect because administering a sedative to slow the respiratory rate does not directly prevent oxygen toxicity. Choice C is incorrect as removing the nasal cannula during the night can compromise the client's oxygenation. Choice D is incorrect as running oxygen through a hydration source does not prevent oxygen toxicity; instead, it may introduce risks associated with the hydration source.
Question 2 of 5
A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?
Correct Answer: B
Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.
Question 3 of 5
The client diagnosed with a right fractured femur has skeletal traction applied to the right femur. Which interventions should the nurse implement?
Correct Answer: D
Rationale: Maintaining skeletal pin sites and assessing for infection are critical in skeletal traction care.
Question 4 of 5
When caring for a laboring client whose contractions are occurring every 2-3 minutes, the nurse should document that the pump is infusing how many ml/hour?
Correct Answer: A
Rationale: The correct calculation for infusion based on the given data is 5 ml/hr. To calculate the infusion rate per hour, you need to determine the number of contractions per hour. If contractions are occurring every 2-3 minutes, this would mean approximately 20-30 contractions per hour. Therefore, if the pump is infusing 5 ml per contraction, the total infusion rate per hour would be 5 ml x 20 contractions = 100 ml/hr. This makes choice A the correct answer. Choices B, C, and D are incorrect as they do not align with the calculation based on the given data.
Question 5 of 5
The nurse assesses a client who is receiving an infusion of 5% dextrose in water with 20 mEq of potassium chloride. The client has oliguria and a serum potassium level of 6.5 mEq/L. What action should the nurse implement first?
Correct Answer: C
Rationale: The correct action for the nurse to implement first is to stop the infusion. Stopping the infusion is crucial to prevent further potassium from being administered, which can exacerbate the client's hyperkalemia. Notifying the healthcare provider of the laboratory results (Choice A) can be done after taking immediate action to stop the infusion. Decreasing the rate of the IV infusion (Choice B) may not be sufficient to address the high potassium level quickly. Administering sodium polystyrene sulfonate (Kayexalate) (Choice D) is not the initial action for managing hyperkalemia; stopping the potassium infusion takes precedence.
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