ATI RN
NCLEX Questions Oxygen Therapy Questions
Question 1 of 5
You want to supply your patient with a consistent FiO₂ regardless of their breathing pattern. Which of the following oxygen device would you select?
Correct Answer: D
Rationale: An air entrainment mask (e.g., Venturi mask) delivers a precise FiO₂ by mixing oxygen with air at a fixed ratio, unaffected by the patient's breathing pattern, unlike low-flow devices like nasal cannula or simple masks.
Question 2 of 5
Which of the following statements in regard to West Zone Lung Model is correct?
Correct Answer: A
Rationale: In West Zone 1, alveolar pressure exceeds both arterial and venous pressures, preventing blood flow, which is correct.
Question 3 of 5
Which of the following diuretics is known to cause potassium depletion?
Correct Answer: C
Rationale: Loop diuretics (e.g., furosemide) cause significant potassium loss, unlike potassium-sparing diuretics.
Question 4 of 5
Which of the following conditions is associated with a high anion gap metabolic acidosis?
Correct Answer: A
Rationale: Diabetic ketoacidosis causes a high anion gap metabolic acidosis due to ketone accumulation.
Question 5 of 5
Which of the following is not one of the fetal cardiac shunts
Correct Answer: D
Rationale: Ductus Metarteriole is not a fetal shunt; the others (Ductus Arteriosus, Foramen Ovale, Ductus Venosus) facilitate fetal circulation.