HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with hyperthyroidism is admitted to the postoperative unit after subtotal thyroidectomy. Which of the client's serum laboratory values requires intervention by the nurse?
- A. Total calcium 5.0 mg/dL.
- B. Serum sodium 140 mEq/L.
- C. Serum potassium 4.0 mEq/L.
- D. Serum glucose 90 mg/dL.
Correct answer: A
Rationale: The correct answer is A. A calcium level of 5.0 mg/dL is critically low and could indicate hypoparathyroidism, a possible complication after thyroidectomy. Low calcium levels can lead to tetany, seizures, and cardiac dysrhythmias, requiring immediate intervention. Choices B, C, and D fall within the normal range and do not require immediate intervention in this scenario.
2. The nurse is reinforcing home care instructions with a client who is being discharged following a transurethral resection of the prostate (TURP). Which intervention is most important for the nurse to include in the client teaching?
- A. Avoid strenuous activity for 6 weeks.
- B. Report fresh blood in the urine.
- C. Take acetaminophen for a fever over 101°F.
- D. Consume 6 to 8 glasses of water daily.
Correct answer: B
Rationale: Reporting fresh blood in the urine is crucial as it may indicate postoperative complications requiring immediate attention. This symptom can be a sign of bleeding, infection, or other issues that need prompt medical evaluation. Avoiding strenuous activity for 6 weeks is important but not as urgent as reporting fresh blood. Taking acetaminophen for a fever over 101°F is relevant but addressing fresh blood in the urine takes precedence. Consuming an adequate amount of water daily is beneficial but not as critical as recognizing and reporting signs of potential complications.
3. The client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value is most concerning?
- A. Serum potassium of 6.0 mEq/L
- B. Serum creatinine of 2.5 mg/dL
- C. Serum calcium of 8.0 mg/dL
- D. Hemoglobin of 10 g/dL
Correct answer: A
Rationale: A serum potassium level of 6.0 mEq/L is most concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, which can lead to serious cardiac complications such as arrhythmias and cardiac arrest. Immediate intervention is required to lower potassium levels. Choice B, serum creatinine of 2.5 mg/dL, is elevated but expected in ESRD due to impaired kidney function. Choice C, serum calcium of 8.0 mg/dL, is within the normal range and not typically a priority in this situation. Choice D, hemoglobin of 10 g/dL, is slightly low but not an immediate concern for a client scheduled for hemodialysis unless significantly lower and causing severe symptoms.
4. A nurse plans to call the healthcare provider to report an 0600 serum potassium level of 2 mEq/L or mmol/L (SI), but the charge nurse tells the nurse that the healthcare provider does not like to receive early morning calls and will make rounds later in the morning. What action should the nurse take?
- A. Contact the healthcare provider immediately to report the laboratory value regardless of the advice.
- B. Document the finding and report it when the healthcare provider makes rounds.
- C. Notify the charge nurse that you are following the chain of command.
- D. Administer a potassium supplement and notify the provider later.
Correct answer: A
Rationale: A nurse should contact the healthcare provider immediately to report a critically low potassium level of 2 mEq/L. Potassium levels below the normal range can lead to life-threatening complications such as cardiac arrhythmias. Prompt notification is essential to ensure timely intervention and prevent harm to the patient. Option B is incorrect as delaying reporting such a critical value can jeopardize patient safety. Option C is not the priority in this situation; the focus should be on patient care. Option D is dangerous and inappropriate as administering a potassium supplement without healthcare provider's guidance can be harmful, especially with a critically low level.
5. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?
- A. Administer intravenous calcium gluconate.
- B. Administer intravenous insulin and glucose.
- C. Administer intravenous sodium bicarbonate.
- D. Administer a loop diuretic as prescribed.
Correct answer: B
Rationale: The correct answer is to administer intravenous insulin and glucose first. This intervention helps drive potassium back into the cells, lowering serum levels effectively. Administering intravenous calcium gluconate (choice A) is used to stabilize cardiac membranes in severe hyperkalemia but does not address the underlying cause. Administering intravenous sodium bicarbonate (choice C) is used in metabolic acidosis, not hyperkalemia. Administering a loop diuretic (choice D) can help eliminate potassium but is not the first-line treatment for hyperkalemia in CKD.
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