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. The nurse is assessing a female client's blood pressure because she reported feeling dizzy. The blood pressure cuff is inflated to 140 mm Hg and as soon as the cuff is deflated a Korotkoff sound is heard. Which intervention should the nurse implement next?
- A. Wait 1 minute and palpate the systolic pressure before auscultating again.
- B. Increase the inflation pressure by 20 mm Hg and measure again.
- C. Switch to a larger cuff and repeat the measurement.
- D. Document the finding as normal.
Correct answer: A
Rationale: If a Korotkoff sound is heard immediately upon deflation, it may indicate an inaccurate reading. Waiting and palpating the systolic pressure can help confirm the accuracy of the measurement. Choice A is the correct intervention because it allows the nurse to ensure the accuracy of the blood pressure reading. Choice B is incorrect as increasing the inflation pressure is not necessary in this situation. Choice C is also incorrect as switching to a larger cuff is not warranted based on the information provided. Choice D is incorrect because documenting the finding as normal without further verification could lead to inaccurate information.
3. The parents of a 6-year-old recently diagnosed with asthma should be taught that symptoms of an acute episode of asthma are due to which physiological response?
- A. Inflammation of the mucous membrane and bronchospasm
- B. Increased mucus production and airway obstruction
- C. Hyperinflation of the lungs and alveolar collapse
- D. Bronchoconstriction and airway inflammation
Correct answer: D
Rationale: The correct answer is D: Bronchoconstriction and airway inflammation. During an acute asthma episode, bronchoconstriction and airway inflammation occur, leading to difficulty breathing. Choices A, B, and C are incorrect. Inflammation of the mucous membrane and bronchospasm (Choice A) are part of the pathophysiology of asthma but do not fully explain the symptoms during an acute episode. Increased mucus production and airway obstruction (Choice B) are also seen in asthma but are not the primary cause of acute symptoms. Hyperinflation of the lungs and alveolar collapse (Choice C) are not typical features of an acute asthma episode.
4. A client is admitted with a diagnosis of sepsis. Which assessment finding is most concerning to the nurse?
- A. Temperature of 101.5°F
- B. Heart rate of 110 beats per minute
- C. Respiratory rate of 24 breaths per minute
- D. Blood pressure of 90/60 mmHg
Correct answer: D
Rationale: A blood pressure of 90/60 mmHg in a client with sepsis is concerning for septic shock, a life-threatening condition that requires immediate intervention. Hypotension is a severe manifestation of sepsis that can lead to poor tissue perfusion and organ failure. While the other assessment findings such as an elevated temperature, increased heart rate, and respiratory rate are also common in sepsis, hypotension is particularly alarming as it indicates a critical state of shock and necessitates urgent medical attention.
5. The healthcare provider is assessing a client with left-sided heart failure. Which laboratory value should be closely monitored?
- A. Serum sodium level
- B. Serum potassium level
- C. Serum creatinine level
- D. Serum glucose level
Correct answer: B
Rationale: In a client with left-sided heart failure, monitoring serum potassium levels is crucial. This helps in assessing kidney function and fluid balance. Elevated potassium levels can result from impaired kidney function, which is common in heart failure. Monitoring sodium levels (choice A) is important in heart failure but not specifically related to left-sided heart failure. Serum creatinine (choice C) reflects kidney function but is not the most critical value to monitor in this case. Serum glucose level (choice D) is important but not the priority when assessing left-sided heart failure.
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