ATI LPN
Fundamentals of Nursing Oxygenation Questions Questions
Question 1 of 5
Which process involves the movement of air into and out of the lungs?
Correct Answer: A
Rationale: Ventilation is the mechanical movement of air into and out of the lungs, distinct from perfusion (blood flow), diffusion (gas exchange), and respiration (overall oxygen use).
Question 2 of 5
Which condition is associated with right-sided heart failure?
Correct Answer: A
Rationale: Right-sided heart failure often results from pulmonary hypertension, increasing resistance in lung circulation, unlike aortic stenosis, mitral regurgitation, or left ventricular issues.
Question 3 of 5
Which medication improves oxygenation in bronchospasm?
Correct Answer: B
Rationale: Bronchodilators (e.g., albuterol) relax bronchial smooth muscles, opening airways and improving oxygenation in bronchospasm, unlike antibiotics, diuretics, or antihypertensives.
Question 4 of 5
Which assessment confirms adequate oxygenation?
Correct Answer: A
Rationale: Pink nail beds indicate good peripheral oxygenation and circulation, unlike cold extremities (poor perfusion), tachypnea (respiratory distress), or confusion (hypoxia).
Question 5 of 5
Which finding suggests a patient is experiencing respiratory acidosis?
Correct Answer: A
Rationale: Respiratory acidosis occurs with a low pH (30) and high PaCO2 (50 mmHg) due to CO2 retention, unlike normal (35-45) or alkalotic values.