ATI RN
Oxygen Therapy NCLEX Questions Questions
Question 1 of 5
The nurse would anticipate which of the following Arterial blood gas results in a client experiencing a prolonged, severe asthma attack?
Correct Answer: B
Rationale: In a severe asthma attack, airway obstruction leads to CO2 retention (increased PaCO2), reduced oxygen (decreased PaO2), and respiratory acidosis (decreased pH).
Question 2 of 5
You increase the IPAP by 2 cmH₂O on a patient on BIPAP. What change would you anticipate seeing?
Correct Answer: A
Rationale: Increasing IPAP (inspiratory pressure) on BIPAP increases tidal volume, enhancing ventilation and reducing PaCO₂.
Question 3 of 5
What is the role of the respiratory center in the medulla oblongata?
Correct Answer: B
Rationale: The medullary respiratory center controls the rate and depth of breathing in response to CO₂, pH, and O₂ levels.
Question 4 of 5
Which laboratory test is commonly used to assess the clotting status in patients suspected of having a pulmonary embolism?
Correct Answer: C
Rationale: D-dimer is a sensitive test for detecting clotting activity, commonly elevated in pulmonary embolism.
Question 5 of 5
A respiratory quotient of 1.00 would indicate energy metabolism by:
Correct Answer: A
Rationale: An RQ of 1.0 indicates carbohydrate metabolism (CHO produces equal CO₂ and O₂ use), unlike fats (0.7) or proteins (0.8).