HESI RN
HESI 799 RN Exit Exam
1. An adolescent's mother calls the clinic because the teen is having recurrent vomiting and has become combative in the last 2 days. The mother states that the teen takes vitamins, calcium, magnesium, and aspirin. Which nursing intervention has the highest priority?
- A. Advise the mother to withhold all medications by mouth.
- B. Instruct the mother to take the teen to the emergency room.
- C. Recommend that the teen withhold food and fluids for 2 hours.
- D. Suggest that the adolescent breathe slowly and deeply.
Correct answer: B
Rationale: The correct answer is to instruct the mother to take the teen to the emergency room. The symptoms described, including recurrent vomiting and becoming combative after taking vitamins, calcium, magnesium, and aspirin, indicate a potential overdose or a serious condition. Therefore, immediate medical evaluation in the emergency room is crucial. Advising to withhold all medications by mouth (Choice A) may delay necessary treatment. Recommending to withhold food and fluids (Choice C) is not appropriate in this urgent situation. Suggesting deep breathing (Choice D) does not address the seriousness of the symptoms and the need for immediate medical attention.
2. A 75-year-old female client is admitted to the orthopedic unit following an open reduction and internal fixation of a hip fracture. On the second postoperative day, the client becomes confused and repeatedly asks the nurse where she is. What information is most important for the nurse to obtain?
- A. History of alcohol use
- B. Current medication list
- C. Baseline cognitive status
- D. Family history of dementia
Correct answer: A
Rationale: The correct answer is A: History of alcohol use. In this scenario, obtaining the history of alcohol use is crucial as it could indicate withdrawal, which might explain the client's confusion. Alcohol withdrawal can lead to symptoms such as confusion, agitation, and disorientation. While knowing the current medication list (choice B) is important for overall patient care, in this case, alcohol withdrawal is a more likely cause of the confusion. Baseline cognitive status (choice C) is valuable for comparison but may not directly explain the sudden confusion. Family history of dementia (choice D) is less relevant in this acute situation compared to the potential immediate impact of alcohol withdrawal.
3. The nurse is caring for a client with a history of atrial fibrillation who is receiving warfarin (Coumadin). Which laboratory value should be closely monitored?
- A. Serum potassium level
- B. Prothrombin time (PT)
- C. International Normalized Ratio (INR)
- D. Serum sodium level
Correct answer: C
Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client receiving warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation to prevent complications such as bleeding or clotting. Choices A, B, and D are incorrect. While monitoring electrolyte levels like serum potassium and sodium is important in overall client care, they are not specific to monitoring the effects of warfarin therapy. Prothrombin time (PT) is a component of INR and helps in monitoring warfarin therapy, but INR gives a standardized result that is independent of the laboratory method used, making it the preferred choice for monitoring warfarin therapy.
4. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which assessment finding is most concerning to the nurse?
- A. Barrel-shaped chest
- B. Use of accessory muscles
- C. Oxygen saturation of 85%
- D. Respiratory rate of 28 breaths per minute
Correct answer: C
Rationale: An oxygen saturation of 85% is significantly low for a client with COPD and indicates hypoxemia, requiring immediate intervention. In COPD, the body's ability to oxygenate adequately is already compromised, so a saturation of 85% is particularly concerning. A barrel-shaped chest and use of accessory muscles are common findings in COPD due to chronic air trapping and increased work of breathing. While a respiratory rate of 28 breaths per minute is elevated, a low oxygen saturation is a more critical finding that necessitates prompt attention.
5. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be reported to the healthcare provider before the procedure?
- A. Serum creatinine of 2.5 mg/dL
- B. Serum potassium of 6.5 mEq/L
- C. Serum calcium of 8 mg/dL
- D. Serum bicarbonate of 24 mEq/L
Correct answer: B
Rationale: The correct answer is B. A serum potassium level of 6.5 mEq/L is dangerously high and should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Serum creatinine (Choice A) is elevated in renal dysfunction but not the most critical value to report before hemodialysis. Serum calcium (Choice C) and serum bicarbonate (Choice D) levels are within normal limits and are not immediate concerns before hemodialysis.
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