HESI RN
HESI RN CAT Exit Exam
1. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?
- A. Blood glucose of 140 mg/dL
- B. White blood cell count of 8000/mm³
- C. Serum potassium of 3.8 mEq/L
- D. Serum calcium of 7.8 mg/dL
Correct answer: D
Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.
2. The nurse is preparing a client for discharge who has a prescription for enoxaparin (Lovenox) self-administration. What information is most important for the nurse to provide the client about this medication?
- A. Self-administration techniques for subcutaneous injection
- B. Avoiding foods high in vitamin K
- C. Signs of bleeding to report to the healthcare provider
- D. Proper disposal of used syringes
Correct answer: A
Rationale: Teaching the client about self-administration techniques for subcutaneous injection is crucial for safe and effective use of enoxaparin. Option A is the correct answer as it directly addresses the client's need to know how to properly administer the medication. Options B, C, and D are important aspects of care but are not the most critical information needed for the client's self-administration of enoxaparin.
3. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?
- A. It dissolves blood clots
- B. It prevents the blood from clotting
- C. It thins the blood
- D. It decreases the risk of infection
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.
4. A client who had an intraosseous (IO) cannula placed by the healthcare provider for emergent fluid resuscitation is complaining of severe pain and numbness below the IO site. The skin around the site is pale and edematous. What action should the nurse take first?
- A. Discontinue the IO infusion
- B. Administer an analgesic via the IO site
- C. Elevate the extremity with the IO site
- D. Notify the healthcare provider
Correct answer: A
Rationale: In this scenario, the client's symptoms of severe pain, numbness, pale skin, and edema below the IO site raise concerns for complications like compartment syndrome or extravasation. The priority action for the nurse is to discontinue the IO infusion to prevent further harm to the client. Administering an analgesic via the IO site or elevating the extremity with the IO site may delay addressing the potential serious complications. While notifying the healthcare provider is important, the immediate action to ensure client safety is to stop the infusion.
5. One hour after delivery, the nurse is unable to palpate the uterine fundus of a client and notes a large amount of lochia on the perineal pad. Which intervention should the nurse implement first?
- A. Empty the bladder using an indwelling urinary catheter
- B. Increase the rate of the IV containing oxytocin (Pitocin)
- C. Assess for shock by determining the blood pressure
- D. Perform gentle massage at the level of the umbilicus
Correct answer: D
Rationale: Gentle massage at the level of the umbilicus is the initial intervention to help contract the uterus and reduce bleeding, which is crucial in managing postpartum hemorrhage. Emptying the bladder can help with fundal displacement, but massage should be done first to stimulate uterine contractions. Increasing the IV oxytocin rate is a possible intervention but not the initial priority. Assessing for shock is important, but addressing the uterine atony through massage takes precedence to prevent further hemorrhage.
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