HESI RN
HESI RN Exit Exam
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which clinical finding requires immediate intervention?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 24 breaths per minute
- C. Use of accessory muscles
- D. Inspiratory crackles
Correct answer: C
Rationale: The correct answer is C: Use of accessory muscles. In a client with COPD receiving supplemental oxygen, the use of accessory muscles is a critical finding that requires immediate intervention. This observation indicates increased work of breathing, suggesting respiratory distress. Addressing this issue promptly is crucial to prevent further respiratory compromise. Choice A, oxygen saturation of 90%, is slightly below the normal range but may not require immediate intervention unless it continues to decrease. Choice B, a respiratory rate of 24 breaths per minute, is within normal limits for an adult and does not indicate an urgent issue. Choice D, inspiratory crackles, may be present in COPD due to secretions or inflammation but do not necessitate immediate intervention unless associated with other concerning signs.
2. When planning care for a 10-year-old child with pneumonia receiving oxygen at 5l/min per nasal cannula, what principle of oxygen administration should the nurse consider?
- A. Avoid administration of oxygen at high levels for extended periods.
- B. Increase oxygen flow rate if the child is still tachypneic.
- C. Reduce oxygen levels gradually after symptoms improve.
- D. Humidify the oxygen to prevent drying of mucous membranes.
Correct answer: A
Rationale: The correct principle of oxygen administration to consider is to avoid administering oxygen at high levels for extended periods. High levels of oxygen for prolonged periods can lead to oxygen toxicity, especially in pediatric patients. Increasing the oxygen flow rate based on tachypnea may not be necessary and can potentially lead to oxygen toxicity. Gradually reducing oxygen levels after symptoms improve may compromise the child's oxygenation. While humidifying oxygen is important to prevent drying of mucous membranes, the primary concern in this case is to avoid high oxygen levels for an extended duration to prevent oxygen toxicity.
3. A client with peptic ulcer disease is being taught about lifestyle modifications by a nurse. Which client statement indicates a need for further teaching?
- A. ‘I should avoid drinking alcohol to prevent irritation of my ulcer.’
- B. ‘I should take my antacids regularly, even if I don’t have symptoms.’
- C. ‘I should avoid eating spicy foods to prevent irritation of my ulcer.’
- D. ‘I should limit my caffeine intake to prevent irritation of my ulcer.’
Correct answer: B
Rationale: The statement ‘I should take my antacids regularly, even if I don’t have symptoms’ indicates a misunderstanding. Antacids should only be taken when symptoms are present to neutralize excess stomach acid. Taking antacids regularly when not experiencing symptoms may lead to metabolic alkalosis. Choices A, C, and D are correct statements for a client with peptic ulcer disease as they all focus on avoiding irritants that can exacerbate the condition.
4. 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.
5. 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.
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