HESI RN
HESI 799 RN Exit Exam
1. The nurse is preparing to administer an IV dose of ciprofloxacin to a client with a urinary tract infection. Which client data requires the most immediate intervention by the nurse?
- A. Serum creatinine of 4.5 mg/dL (398 μmol/L SI)
- B. Temperature of 101.3°F
- C. Blood pressure of 140/90 mmHg
- D. Heart rate of 88 bpm
Correct answer: A
Rationale: A serum creatinine level of 4.5 mg/dL indicates severe renal impairment, which requires immediate attention before administering ciprofloxacin. Elevated serum creatinine levels suggest decreased kidney function, and giving ciprofloxacin can further harm the kidneys. Monitoring and addressing renal function are crucial to prevent worsening of renal impairment and potential drug toxicity. The temperature, blood pressure, and heart rate are important parameters to assess, but in this scenario, the priority is to address the severe renal impairment before proceeding with ciprofloxacin administration.
2. During shift report, the central electrocardiogram (EKG) monitoring system alarms. Which client alarm should the nurse investigate first?
- A. Respiratory apnea of 30 seconds
- B. Oxygen saturation rate of 88%
- C. Eight premature ventricular beats every minute
- D. Disconnected monitor signal for the last 6 minutes.
Correct answer: A
Rationale: The correct answer is A: Respiratory apnea of 30 seconds. Respiratory apnea indicates a cessation of breathing, which is a life-threatening emergency requiring immediate intervention. Priority should be given to assessing and managing airway, breathing, and circulation. Option B, oxygen saturation rate of 88%, can indicate hypoxemia, but addressing the lack of breathing takes precedence. Option C, eight premature ventricular beats every minute, and option D, a disconnected monitor signal, are important but do not pose an immediate threat to the client's life compared to respiratory apnea.
3. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value is most concerning?
- A. Serum ammonia level of 100 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Prothrombin time of 18 seconds
- D. Serum sodium level of 135 mEq/L
Correct answer: A
Rationale: A serum ammonia level of 100 mcg/dl is most concerning in a client with hepatic encephalopathy. Elevated serum ammonia levels indicate significant liver dysfunction and an increased risk of worsening encephalopathy. Bilirubin level and prothrombin time are important in assessing liver function, but in the context of hepatic encephalopathy, elevated ammonia levels take precedence as they directly contribute to neurological symptoms. Serum sodium level, though important, is not the primary concern when managing hepatic encephalopathy.
4. The nurse is caring for a client with a history of atrial fibrillation who is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?
- A. Prothrombin time (PT)
- B. Hemoglobin level
- C. International Normalized Ratio (INR)
- D. Serum sodium level
Correct answer: C
Rationale: The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps determine if the client's blood is clotting appropriately. While prothrombin time (PT) is related to warfarin therapy, the INR is a more precise measure. Hemoglobin level and serum sodium level are not directly related to monitoring warfarin therapy.
5. The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should be closely monitored?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum sodium level of 135 mEq/L
Correct answer: A
Rationale: The correct answer is A: Serum potassium level. In clients receiving erythropoietin therapy for chronic kidney disease, monitoring serum potassium levels is crucial due to the risk of developing hyperkalemia. Erythropoietin therapy can stimulate red blood cell production, leading to an increase in potassium levels. Monitoring potassium levels helps prevent complications associated with hyperkalemia, such as cardiac arrhythmias. Choices B, C, and D are incorrect because while hemoglobin levels are relevant for assessing the effectiveness of erythropoietin therapy, monitoring potassium levels is more critical due to the potential adverse effects of elevated potassium levels in CKD patients on this therapy.
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