ATI RN
Chapter 41 Oxygenation NCLEX Questions Questions
Question 1 of 5
A client taking Coumadin is to be educated on his diet. As a nurse, which of the following food should you instruct the client to avoid?
Correct Answer: A
Rationale: Green leafy vegetables and liver are high in Vitamin K, which antagonizes Coumadin (warfarin), reducing its anticoagulant effect.
Question 2 of 5
Oxygen at the rate of 2 LPM through nasal cannula is prescribed for a client with COPD. Which of the following statements best describes why the oxygen therapy is maintained at a relatively low concentration?
Correct Answer: D
Rationale: In COPD, high O2 can suppress the hypoxic drive, reducing respiratory stimulus due to chronic CO2 retention.
Question 3 of 5
Which of the following statements regarding the use of an oral airway is correct?
Correct Answer: B
Rationale: Insertion of an oral airway can injure the hard palate if not done carefully, making this statement correct.
Question 4 of 5
While ventilating a patient with a set peak inspiratory pressure of 20 cmH₂O, the physician order you to increase the PEEP from 5 to 10 cmH₂O. Based on the above change the tidal volume will decrease.
Correct Answer: A
Rationale: In pressure control ventilation, increasing PEEP from 5 to 10 cmH₂O with a fixed PIP of 20 cmH₂O reduces the pressure gradient (PIP - PEEP) from 15 to 10 cmH₂O, decreasing tidal volume.
Question 5 of 5
Lidocaine falls into which class of anti-arrythmic medications?
Correct Answer: B
Rationale: Lidocaine is a Class 1b antiarrhythmic, affecting sodium channels to treat ventricular arrhythmias.