ATI RN
Nursing Fundamentals Oxygenation Questions Questions
Question 1 of 5
When listening to heart sounds 'Lub' represents closure of what valve(s)?
Correct Answer: B
Rationale: The 'Lub' (S1) sound is from the closure of the mitral and tricuspid valves at the start of systole.
Question 2 of 5
The left ventricular preload can be estimated by measuring:
Correct Answer: B
Rationale: Pulmonary capillary wedge pressure (PCWP) estimates left ventricular preload by reflecting left atrial pressure.
Question 3 of 5
Which of the following is a clinical manifestation of croup in pediatric patients?
Correct Answer: A
Rationale: Inspiratory stridor is a hallmark of croup due to upper airway narrowing.
Question 4 of 5
A nurse is caring for a patient with pneumonia. The patients oxygen saturation is below normal. What abnormal respiratory process does this demonstrate?
Correct Answer: A
Rationale: Pneumonia impairs gas exchange due to inflammation and fluid in the alveoli, affecting the alveolar-capillary membrane and diffusion.
Question 5 of 5
What can a nurse ask a patient to do before suctioning to prevent hypoxemia?
Correct Answer: D
Rationale: Taking deep breaths pre-oxygenates the patient, reducing the risk of hypoxemia during suctioning.