HESI RN
HESI 799 RN Exit Exam
1. The nurse is caring for a client with acute respiratory distress syndrome (ARDS) who is receiving mechanical ventilation. Which assessment finding requires immediate intervention?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 28 breaths per minute
- C. Tidal volume of 300 ml
- D. Blood pressure of 110/70 mmHg
Correct answer: C
Rationale: The correct answer is C. A tidal volume of 300 ml is concerning in a client with ARDS on mechanical ventilation because it indicates hypoventilation, which can lead to inadequate gas exchange and worsening respiratory status. This finding requires immediate intervention to optimize ventilation and oxygenation. Options A, B, and D are not as critical in this scenario. An oxygen saturation of 90% may be acceptable depending on the client's baseline condition and the target range set by the healthcare provider. A respiratory rate of 28 breaths per minute is slightly elevated but may not be immediately alarming. A blood pressure of 110/70 mmHg is within normal limits and does not require urgent intervention.
2. Which assessment finding indicates to the nurse a client's readiness for pulmonary function tests?
- A. Expresses an understanding of the procedure.
- B. NPO for 6 hrs.
- C. No known drug allergies.
- D. Intravenous access intact.
Correct answer: A
Rationale: The correct answer is A: 'Expresses an understanding of the procedure.' This choice indicates that the client is mentally prepared for the pulmonary function tests, as understanding the procedure shows readiness and cooperation. Choices B, C, and D are incorrect. Choice B, 'NPO for 6 hrs,' pertains to fasting status and is not directly related to readiness for the test. Choice C, 'No known drug allergies,' is important information but does not specifically indicate readiness for pulmonary function tests. Choice D, 'Intravenous access intact,' is related to vascular access and not a direct indicator of readiness for the pulmonary function tests.
3. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which laboratory value should be closely monitored?
- A. Serum creatinine of 2.0 mg/dL
- B. Serum sodium of 135 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Blood glucose of 150 mg/dL
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L should be closely monitored in a client with chronic heart failure as it may indicate hyperkalemia, requiring intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias in patients with heart failure. Serum creatinine (Choice A) is important to monitor for kidney function but is not the priority in this case. Serum sodium (Choice B) and blood glucose (Choice D) levels are not typically the primary focus when assessing a client with heart failure presenting with respiratory symptoms and crackles in the lungs.
4. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which laboratory value requires immediate intervention?
- A. Arterial blood gas (ABG) values
- B. Serum potassium level
- C. Serum sodium level
- D. Blood glucose level
Correct answer: A
Rationale: The correct answer is A: Arterial blood gas (ABG) values. In a client with COPD and pneumonia, ABG values are crucial as they provide essential information about the client's respiratory status, including oxygenation and acid-base balance. Immediate intervention may be required to optimize respiratory function based on ABG results. Serum potassium, sodium, and blood glucose levels are important parameters to monitor in various conditions but are not as directly related to the respiratory status in a client with COPD and pneumonia. Therefore, they do not require immediate intervention compared to ABG values.
5. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which assessment finding is most concerning?
- A. INR of 3.5
- B. Prothrombin time (PT) of 15 seconds
- C. Headache
- D. Blood pressure of 140/90 mmHg
Correct answer: C
Rationale: The correct answer is C. A headache in a client with a history of atrial fibrillation receiving warfarin (Coumadin) is concerning as it may indicate bleeding, which requires immediate assessment and intervention. Headaches can be a symptom of increased intracranial pressure due to bleeding, especially in patients on anticoagulants. Options A and B are within acceptable ranges for a client on warfarin therapy, indicating that the medication is effectively managing the clotting times. Option D, a blood pressure of 140/90 mmHg, while elevated, is not directly related to the client's condition of atrial fibrillation and warfarin therapy.
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