HESI RN
RN HESI Exit Exam
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dL
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.
2. One day after abdominal surgery, an obese client complains of pain and heaviness in the right calf. What action should the nurse implement?
- A. Observe for unilateral swelling
- B. Administer pain medication
- C. Elevate the leg and apply a warm compress
- D. Notify the healthcare provider
Correct answer: A
Rationale: The correct action for the nurse to implement is to observe for unilateral swelling. Unilateral swelling could indicate a deep vein thrombosis (DVT), which is a serious complication that requires immediate assessment. Administering pain medication or applying warm compress may not address the underlying cause of the symptoms. Notifying the healthcare provider should be done after assessing and identifying the issue of unilateral swelling.
3. Following insertion of a LeVeen shunt in a client with cirrhosis of the liver, which assessment finding indicates to the nurse that the shunt is effective?
- A. Decreased abdominal girth
- B. Increased blood pressure
- C. Clear breath sounds
- D. Decreased serum albumin
Correct answer: A
Rationale: The correct answer is A: Decreased abdominal girth. In a client with cirrhosis of the liver, a LeVeen shunt is used to treat ascites, which is the accumulation of fluid in the peritoneal cavity. A decrease in abdominal girth indicates that the shunt is effectively draining the ascitic fluid, relieving the client's abdominal distension. Choice B, increased blood pressure, is incorrect as a LeVeen shunt is not expected to impact blood pressure. Choice C, clear breath sounds, is unrelated to the effectiveness of a LeVeen shunt in managing ascites. Choice D, decreased serum albumin, is also not a direct indicator of the shunt's effectiveness in draining ascitic fluid.
4. 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.
5. A client with end-stage renal disease (ESRD) is receiving hemodialysis. Which laboratory value should the nurse monitor closely?
- A. Serum calcium level of 9 mg/dl
- B. Serum potassium level of 4.5 mEq/L
- C. Serum creatinine level of 2.0 mg/dl
- D. Serum sodium level of 138 mEq/L
Correct answer: C
Rationale: The correct answer is C: Serum creatinine level of 2.0 mg/dl. In a client with ESRD receiving hemodialysis, serum creatinine should be closely monitored. Elevated creatinine levels indicate impaired kidney function. Monitoring serum calcium levels (Choice A), serum potassium levels (Choice B), and serum sodium levels (Choice D) is also important in clients with ESRD, but the most crucial indicator of kidney function in this case is serum creatinine.
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