NCLEX RN Practice Question # 959
NCLEX Examination.
Practice Question # 959.
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1. Question
The nurse reviews the blood gas results of a client with atelectasis. The nurse analyzes the results and determines that the client is experiencing respiratory acidosis. Which result validates the nurse’s findings?
CorrectOption A is the correct answer.
Rationale: Atelectasis is a condition characterized by the collapse of alveoli, preventing the respiratory exchange of oxygen and carbon dioxide in a part of the lungs. The normal pH is 7.35 to 7.45. The normal Paco2 is 35 to 45 mm Hg (35 to 45 mm Hg). In respiratory acidosis, the pH is decreased and the Paco2 is elevated. Option 2 identifies normal values. Option 3 identifies an alkalotic condition, and option 4 identifies respiratory alkalosis.
Test-Taking Strategy: Focus on the subject, the arterial blood gas results in a client with atelectasis. Remember that in a respiratory imbalance you will find an opposite response between the pH and the Paco2. Also, remember that the pH is decreased in an acidotic condition. First eliminate option 2 because it reflects a normal blood gas result. Options 3 and 4 identify an elevated pH, indicating an alkalotic condition. The correct option is the only one that reflects an acidotic condition.
IncorrectOption A is the correct answer.
Rationale: Atelectasis is a condition characterized by the collapse of alveoli, preventing the respiratory exchange of oxygen and carbon dioxide in a part of the lungs. The normal pH is 7.35 to 7.45. The normal Paco2 is 35 to 45 mm Hg (35 to 45 mm Hg). In respiratory acidosis, the pH is decreased and the Paco2 is elevated. Option 2 identifies normal values. Option 3 identifies an alkalotic condition, and option 4 identifies respiratory alkalosis.
Test-Taking Strategy: Focus on the subject, the arterial blood gas results in a client with atelectasis. Remember that in a respiratory imbalance you will find an opposite response between the pH and the Paco2. Also, remember that the pH is decreased in an acidotic condition. First eliminate option 2 because it reflects a normal blood gas result. Options 3 and 4 identify an elevated pH, indicating an alkalotic condition. The correct option is the only one that reflects an acidotic condition.
Atelectasis: A collapsed or airless state of the lung that may be the result of airway obstruction caused by accumulated secretions or failure of the client to deep breathe or ambulate after surgery; a postoperative complication that usually occurs 1 to 2 days after surgery.
