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. An 18-year-old gravida 1, at 41-weeks gestation, is undergoing an oxytocin (Pitocin) induction and has an epidural catheter in place for pain control. With each of the last three contractions, the nurse notes a late deceleration. The client is repositioned and oxygen provided, but the late decelerations continue to occur with each contraction. What action should the nurse take first?
- A. Prepare for immediate cesarean birth
- B. Turn off the oxytocin (Pitocin) infusion
- C. Notify the anesthesiologist that the epidural infusion needs to be disconnected
- D. Apply an internal fetal monitoring device and continue to monitor carefully
Correct answer: B
Rationale: In the scenario described, the presence of late decelerations during contractions indicates fetal compromise. To address this, the nurse's initial action should be to turn off the oxytocin (Pitocin) infusion. Oxytocin can contribute to uteroplacental insufficiency, leading to late decelerations. This intervention aims to improve fetal oxygenation and prevent further stress on the fetus. Immediate cesarean birth is not the first-line action unless other interventions fail. Notifying the anesthesiologist about disconnecting the epidural infusion is not the priority in this situation. Applying an internal fetal monitoring device is invasive and not the immediate step needed when late decelerations are present.
3. A client with a history of congestive heart failure (CHF) is admitted with fluid volume overload. Which assessment finding should the nurse report to the healthcare provider?
- A. Weight gain of 2 pounds in 24 hours
- B. Presence of a cough
- C. Edema in the lower extremities
- D. Shortness of breath
Correct answer: D
Rationale: The correct answer is 'D - Shortness of breath.' In a client with congestive heart failure experiencing fluid volume overload, shortness of breath is a critical finding that indicates possible pulmonary congestion and worsening heart failure. This symptom requires immediate attention to prevent further complications. Choices A, B, and C are common findings in clients with CHF but are not as urgent as shortness of breath. Weight gain may indicate fluid retention, cough can be due to pulmonary congestion, and edema in lower extremities is a common manifestation of CHF, but none of these findings are as concerning as shortness of breath in this scenario.
4. A 2-year-old boy with short bowel syndrome has progressed to receiving enteral feedings only. Today his stools are occurring more frequently and have a more liquid consistency. His temperature is 102.2°F and he has vomited twice in the past four hours. Which assessment finding indicates that the child is becoming dehydrated?
- A. Occult blood in the stool
- B. Abdominal distention
- C. Elevated urine specific gravity
- D. Hyperactive bowel sounds
Correct answer: C
Rationale: Elevated urine specific gravity is a sign of dehydration in children. In the scenario provided, the child is experiencing increased stool frequency, liquid consistency, fever, and vomiting, indicating fluid loss and potential dehydration. Occult blood in the stool may suggest gastrointestinal bleeding but is not a direct indicator of dehydration. Abdominal distention can be seen in various conditions and is not specific to dehydration. Hyperactive bowel sounds are more commonly associated with increased bowel motility, not necessarily dehydration.
5. A client is taught how to collect a 24-hour urine specimen. Which statement indicates understanding of the procedure?
- A. I should keep the urine specimen refrigerated.
- B. I need to start the collection in the morning after my first void.
- C. I will collect the urine for 24 hours and keep it on ice.
- D. I will start collecting the urine after discarding my first morning specimen.
Correct answer: D
Rationale: The correct way to collect a 24-hour urine specimen is to discard the first morning void and then start the collection. Choice A is incorrect because refrigeration is not typically necessary for a 24-hour urine specimen. Choice B is incorrect as the client needs to discard the first void. Choice C is incorrect; while collecting urine for 24 hours is correct, keeping it on ice is not standard procedure.
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