HESI RN
HESI 799 RN Exit Exam
1. The nurse is caring for a client with end-stage renal disease (ESRD) who is scheduled for hemodialysis. Which clinical finding is most concerning?
- A. Blood pressure of 110/70 mmHg
- B. Heart rate of 110 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 because it may indicate an underlying infection that requires immediate attention. Elevated body temperature can be a sign of systemic infection, which can quickly worsen in individuals with compromised renal function. Monitoring for infection is crucial in ESRD patients to prevent complications. Choices A, B, and D are not as immediately concerning in this context. While variations in blood pressure, heart rate, and respiratory rate should be monitored, they are not as indicative of a potentially severe issue as an unexplained fever in this scenario.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
3. Following a gunshot wound to the abdomen, a young adult male had an emergency bowel resection and received multiple blood products. His current blood pressure is 78/52 mm Hg, and he is being mechanically ventilated. His oxygen saturation is 87%. Laboratory values indicate hemoglobin of 7 g/dL, platelets of 20,000/mm³, and white blood cells of 2,000/mm³. Which intervention should the nurse implement first?
- A. Transfuse packed red blood cells.
- B. Obtain blood and sputum cultures.
- C. Infuse 1000 ml of normal saline.
- D. Titrate oxygen to keep O2 saturation above 90%.
Correct answer: A
Rationale: The correct answer is to transfuse packed red blood cells first. The client's low hemoglobin level of 7 g/dL indicates severe anemia, which requires immediate transfusion to increase oxygen-carrying capacity. While obtaining blood and sputum cultures (Choice B) is important to identify potential infections, addressing the critical issue of anemia takes precedence. Infusing normal saline (Choice C) may help with volume status but does not address the primary concern of low hemoglobin. Titration of oxygen (Choice D) is crucial, but transfusion to improve oxygen-carrying capacity should be the priority in this scenario.
4. A client with chronic heart failure 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 1.5 mg/dl
- D. Blood glucose of 200 mg/dl
Correct answer: A
Rationale: A serum potassium level of 3.0 mEq/L requires immediate intervention in a client receiving furosemide. Furosemide can cause potassium loss, leading to hypokalemia, which can be dangerous, especially in patients with heart failure. Hypokalemia can predispose the client to cardiac dysrhythmias, weakness, and other complications. Therefore, prompt intervention is necessary to prevent these adverse effects. Choice B (Serum sodium of 135 mEq/L) is within the normal range and does not require immediate intervention. Choice C (Serum creatinine of 1.5 mg/dl) may indicate kidney dysfunction but does not pose an immediate threat to the client's safety. Choice D (Blood glucose of 200 mg/dl) may suggest hyperglycemia, which is important but not as urgent as addressing hypokalemia in a client with heart failure receiving furosemide.
5. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value requires immediate intervention?
- A. Serum ammonia level of 80 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Serum sodium level of 135 mEq/L
- D. Prothrombin time of 18 seconds
Correct answer: D
Rationale: The correct answer is D. A prothrombin time of 18 seconds is most concerning in a client with hepatic encephalopathy as it indicates impaired liver function and an increased risk of bleeding. This requires immediate intervention to prevent bleeding complications. Choice A, serum ammonia level of 80 mcg/dl, is elevated but not as urgent as the abnormal prothrombin time. Choice B, bilirubin level of 3.0 mg/dl, is elevated but does not directly indicate an urgent need for intervention in this situation. Choice C, serum sodium level of 135 mEq/L, is within the normal range and does not require immediate intervention.
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