HESI RN
HESI 799 RN Exit Exam
1. A client with a history of atrial fibrillation is admitted with a new onset of confusion. Which laboratory value should the nurse monitor closely?
- A. International Normalized Ratio (INR)
- B. Serum glucose level
- C. White blood cell count
- D. Prothrombin time (PT)
Correct answer: A
Rationale: The correct answer is A: International Normalized Ratio (INR). The INR should be closely monitored in a client with atrial fibrillation to assess the effectiveness and safety of anticoagulation therapy with warfarin. Monitoring the INR helps to ensure that the client is within the therapeutic range to prevent complications such as thrombosis or bleeding. Choices B, C, and D are less relevant in this scenario. While serum glucose levels are important in assessing metabolic status, and white blood cell count and prothrombin time are important indicators for other conditions, they are not the primary focus when a client with atrial fibrillation presents with confusion.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which intervention is most important?
- A. Administer intravenous fluids as prescribed.
- B. Monitor the client's urine output.
- C. Administer insulin as prescribed.
- D. Administer 50% dextrose IV push.
Correct answer: C
Rationale: Administering insulin is the most important intervention in managing diabetic ketoacidosis. In DKA, there is a lack of insulin leading to hyperglycemia and ketosis. Insulin administration helps to reduce blood glucose levels and correct metabolic acidosis, which are crucial in treating DKA. Administering intravenous fluids helps with dehydration, monitoring urine output is important to assess renal function, but the priority is addressing the underlying cause of DKA by administering insulin. Administering 50% dextrose IV push is incorrect as it would further elevate blood glucose levels, which is contraindicated in DKA.
3. Following an open reduction of the tibia, the nurse notes bleeding on the client's cast. Which action should the nurse implement?
- A. Outline the area with ink and check it every 15 minutes to see if the area has increased
- B. Notify the healthcare provider immediately
- C. Apply a new cast to stop the bleeding
- D. Elevate the limb to reduce blood flow
Correct answer: A
Rationale: After an open reduction of the tibia, bleeding on the cast can be a concern. Outlining the area with ink and monitoring it every 15 minutes is the appropriate action to assess if the bleeding is worsening, indicating the need for further intervention. This action allows for close observation without disturbing the cast. Choice B is incorrect because while notifying the healthcare provider is important, immediate action is not always necessary if the bleeding is not severe. Choice C is incorrect because applying a new cast is not the standard intervention for bleeding on a cast. Choice D is incorrect because elevating the limb may not address the underlying cause of bleeding and may not be the most appropriate action at this time.
4. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which assessment finding should be reported to the healthcare provider immediately?
- A. Blood pressure of 110/70 mmHg
- B. Heart rate of 80 beats per minute
- C. Fever of 100.4°F
- D. Respiratory rate of 24 breaths per minute
Correct answer: C
Rationale: The correct answer is C. A fever of 100.4°F is most concerning in a client with ESRD scheduled for hemodialysis as it may indicate an underlying infection, which can lead to serious complications in this population. Elevated body temperature can be a sign of sepsis, which requires immediate attention to prevent further deterioration. Reporting this finding promptly allows for timely intervention. Choices A, B, and D are within normal ranges and do not pose an immediate threat to the client's well-being in the context of preparing for hemodialysis.
5. The nurse is caring for a client with chronic heart failure who is receiving furosemide (Lasix). Which laboratory value requires immediate intervention?
- A. Serum potassium of 3.0 mEq/L
- B. Serum sodium of 135 mEq/L
- C. Serum creatinine of 1.8 mg/dL
- D. Blood glucose of 200 mg/dL
Correct answer: A
Rationale: A serum potassium level of 3.0 mEq/L is most concerning in a client receiving furosemide as it indicates hypokalemia, which requires immediate intervention. Hypokalemia can lead to serious cardiac arrhythmias, which can be life-threatening. Serum sodium of 135 mEq/L and serum creatinine of 1.8 mg/dL are within normal ranges and do not require immediate intervention in this case. Blood glucose of 200 mg/dL is elevated but does not pose an immediate threat to the client's life in the context of heart failure and furosemide therapy.
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