HESI RN
HESI RN CAT Exit Exam
1. The nurse is caring for a client who is receiving heparin therapy. Which laboratory value should the nurse monitor to determine the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. International normalized ratio (INR)
- D. Activated partial thromboplastin time (aPTT)
Correct answer: C
Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.
2. A 59-year-old male client is brought to the emergency room where he is assessed to have a Glasgow Coma Scale of 3. Based on this assessment, how should the nurse characterize the client's condition?
- A. The client is experiencing increased intracranial pressure
- B. He has a good prognosis for recovery
- C. This client is conscious, but is not oriented to time and place
- D. He is in a coma, and has a very poor prognosis
Correct answer: D
Rationale: A Glasgow Coma Scale of 3 indicates severe neurological impairment, suggesting a deep coma or even impending death. This client's condition is critical, and he has a very poor prognosis. Choice A is incorrect because a GCS of 3 does not directly indicate increased intracranial pressure. Choice B is incorrect as a GCS of 3 signifies a grave neurological status. Choice C is incorrect as a GCS of 3 represents a state of unconsciousness rather than being conscious but disoriented.
3. A client in the oliguric phase of acute renal failure (ARF) has a 24-hour urine output of 400 ml. How much oral intake should the nurse allow this client to have during the next 24 hours?
- A. Encourage oral fluids as tolerated
- B. Decrease oral intake to 200 ml
- C. Allow the client to have exactly 400 ml oral intake
- D. Limit oral intake to 900 to 1,000 ml
Correct answer: D
Rationale: In the oliguric phase of acute renal failure (ARF), the goal is to prevent fluid overload. Since the client has a low urine output of 400 ml in 24 hours, limiting oral intake to 900 to 1,000 ml is appropriate. Encouraging unrestricted oral fluids (Choice A) can exacerbate fluid overload. Decreasing oral intake to 200 ml (Choice B) would be too restrictive and may lead to dehydration. Allowing the client to have exactly 400 ml oral intake (Choice C) would not account for other sources of fluid intake and output, potentially resulting in fluid imbalance.
4. The nurse is triaging clients from a train wreck. A client has multiple open wounds, a blood pressure of 90/56, and a pulse of 112 beats/minute. Which triage tag color should the nurse place on this client?
- A. Black
- B. Yellow
- C. Green
- D. Red
Correct answer: D
Rationale: The correct answer is D: Red. The client's vital signs indicate critical condition with a high pulse and low blood pressure, suggesting shock. A red tag is used to identify patients who require immediate attention and should be prioritized for treatment. Choice A, Black, is incorrect as it is typically used for deceased or expectant clients. Choice B, Yellow, is used for clients with non-life-threatening injuries who require medical care but can wait. Choice C, Green, is for clients with minor injuries who can wait the longest for treatment. Therefore, in this scenario, the client's condition warrants a red triage tag for immediate attention.
5. 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.
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