HESI RN
HESI RN Exit Exam
1. The nurse is caring for a client who is postoperative following a thyroidectomy. Which laboratory value should be monitored closely?
- A. Serum calcium of 8.5 mg/dL
- B. Serum sodium of 136 mEq/L
- C. Serum potassium of 3.0 mEq/L
- D. Serum chloride of 102 mEq/L
Correct answer: C
Rationale: A serum potassium level of 3.0 mEq/L should be monitored closely in a client who is postoperative following a thyroidectomy to detect any electrolyte imbalances. After a thyroidectomy, there is a risk of hypokalemia due to the effects of anesthesia, stress response, and the surgical procedure itself. Monitoring serum potassium levels is crucial as hypokalemia can lead to cardiac arrhythmias and muscle weakness. Serum calcium, sodium, and chloride levels are important but not the primary focus following a thyroidectomy, making them incorrect choices.
2. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should the nurse report to the healthcare provider immediately?
- A. Serum potassium of 5.5 mEq/L
- B. Serum calcium of 8 mg/dL
- C. Serum creatinine of 2.0 mg/dL
- D. White blood cell count of 10,000/mm³
Correct answer: A
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to serious cardiac arrhythmias, especially during hemodialysis. Serum calcium, serum creatinine, and white blood cell count, while important, do not pose immediate life-threatening risks like hyperkalemia.
3. The nurse is caring for a client with a tracheostomy who has thick, tenacious secretions. Which assessment finding is most concerning?
- A. Crepitus around the tracheostomy site
- B. Dry and cracked tracheostomy site
- C. Yellowing of the skin around the tracheostomy site
- D. Mucous plugging of the tracheostomy tube
Correct answer: D
Rationale: Mucous plugging of the tracheostomy tube is the most concerning finding in a client with a tracheostomy and thick secretions. This can lead to airway obstruction, which requires immediate intervention to maintain a patent airway. Crepitus around the tracheostomy site may indicate subcutaneous emphysema but does not pose an immediate threat to the airway. A dry and cracked tracheostomy site may require interventions to promote healing but is not as urgent as mucous plugging. Yellowing of the skin around the tracheostomy site could indicate infection or impaired circulation, which should be addressed but does not pose the same immediate risk as airway obstruction.
4. The nurse is caring for a client who is postoperative following a thyroidectomy. Which finding requires immediate intervention?
- A. Hoarse voice
- B. Slight difficulty swallowing
- C. Positive Chvostek's sign
- D. Pain at the incision site
Correct answer: C
Rationale: A positive Chvostek's sign indicates hypocalcemia, a common complication following thyroidectomy due to inadvertent parathyroid gland injury. Immediate intervention is needed to prevent severe hypocalcemia symptoms like tetany, seizures, and laryngospasm. Hoarse voice and slight difficulty swallowing are expected post-thyroidectomy and do not require immediate intervention. Pain at the incision site is common postoperatively and can be managed with appropriate pain relief measures.
5. A client with chronic kidney disease (CKD) is scheduled for a renal biopsy. Which laboratory value is most concerning?
- A. Serum potassium of 5.5 mEq/L
- B. Serum creatinine of 1.5 mg/dl
- C. Serum creatinine of 2.5 mg/dl
- D. White blood cell count of 8,000/mm3
Correct answer: C
Rationale: A serum creatinine level of 2.5 mg/dl is the most concerning laboratory value in a client with chronic kidney disease scheduled for a renal biopsy. An elevated serum creatinine level indicates impaired kidney function, which is critical information before performing a renal biopsy. Option A (Serum potassium of 5.5 mEq/L) may be concerning for hyperkalemia but is not directly related to the renal biopsy procedure. Option B (Serum creatinine of 1.5 mg/dl) is within normal limits, suggesting relatively normal kidney function. Option D (White blood cell count of 8,000/mm3) is within the normal range and not directly related to the renal biopsy procedure or CKD management.
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