ATI RN
Oxygenation Nursing Practice Questions Questions
Question 1 of 5
The most important property of helium with respect to its use in helium-oxygen therapy is its:
Correct Answer: B
Rationale: Helium's low density reduces airway resistance and improves gas flow in obstructive conditions, making it the key property for heliox therapy.
Question 2 of 5
Which drug is not an inotropic agent?
Correct Answer: B
Rationale: Salbutamol is a bronchodilator (beta-2 agonist), not an inotrope, unlike the others which enhance cardiac contractility.
Question 3 of 5
Pulmonary hypertension is defined as a mean pulmonary artery pressure greater than:
Correct Answer: B
Rationale: Pulmonary hypertension is defined as a mean pulmonary artery pressure >25 mmHg at rest.
Question 4 of 5
Which of the following lung volumes or capacities is calculated by adding the tidal volume, inspiratory reserve volume, and expiratory reserve volume?
Correct Answer: C
Rationale: Vital capacity (VC) = Vt + IRV + ERV, representing the maximum volume of air that can be exhaled after maximum inhalation.
Question 5 of 5
A patient on trach mask trials with a 7.5 mm Shiley trach tube is requiring open tracheal suctioning. Which of the following would be the recommended PPE to wear?
Correct Answer: C
Rationale: Open tracheal suctioning requires gloves, goggles, and a face mask to protect against aerosolized secretions.