HESI RN
HESI RN CAT Exit Exam
1. 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.
2. 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.
3. The nurse is preparing to administer a unit of packed red blood cells (PRBCs) to a client. Which action is most important for the nurse to take?
- A. Verify the client's blood type
- B. Ensure the PRBCs are warm
- C. Check the client's vital signs
- D. Obtain the client's consent
Correct answer: A
Rationale: Verifying the client's blood type is crucial before administering PRBCs to ensure compatibility and prevent transfusion reactions. Checking the client's blood type is essential in blood transfusions. Ensuring the PRBCs are warm is not a priority as the temperature should be within a specific range regardless of the client's preference. Checking the client's vital signs is important but not as crucial as verifying the blood type before a blood transfusion. Obtaining the client's consent is important for any procedure but does not directly impact the safety and success of administering PRBCs.
4. The nurse is planning care for a client who is receiving radiation therapy for breast cancer. Which intervention is most important for the nurse to include?
- A. Encourage the client to use sunscreen
- B. Apply lotion to the radiated area
- C. Keep the area dry and clean
- D. Encourage the client to exercise the arm
Correct answer: C
Rationale: Keeping the radiated area dry and clean is crucial to prevent skin irritation and infection. Radiation therapy can cause skin changes, making it susceptible to irritation and infection. Using sunscreen (Choice A) is not usually recommended on the radiated area as it can further irritate the skin. Applying lotion (Choice B) may not be suitable as it can trap moisture and cause skin breakdown. While encouraging exercise (Choice D) is important, keeping the area dry and clean takes precedence to prevent complications during radiation therapy.
5. The nurse is caring for a client who is receiving morphine sulfate via a patient-controlled analgesia (PCA) pump. Which action is most important for the nurse to implement?
- A. Monitor the client's respiratory status
- B. Teach the client how to use the PCA pump
- C. Evaluate the client's pain level
- D. Assess the client's pain level
Correct answer: A
Rationale: The correct answer is to monitor the client's respiratory status. When administering opioids like morphine sulfate via a PCA pump, it is crucial to closely monitor the client's respiratory status to detect signs of respiratory depression early. This is important for ensuring the client's safety while receiving pain management. Choices B, C, and D are incorrect because while teaching the client to use the PCA pump and assessing or evaluating their pain level are essential aspects of care, monitoring respiratory status takes precedence due to the potential risks associated with opioid use.
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