ATI RN
Oxygen Questions and Answers PDF Questions
Question 1 of 5
Which of the following statement by a client with prolonged vomiting indicates the initial onset of hypokalemia?
Correct Answer: D
Rationale: Leg cramping is an early sign of hypokalemia due to potassium's role in muscle function, often seen after prolonged vomiting.
Question 2 of 5
What is the recommended absolute humidity for inspired gases in mechanically ventilated patients?
Correct Answer: C
Rationale: The recommended absolute humidity for mechanically ventilated patients is 30-44 mg H₂O/L to mimic physiological conditions and prevent airway drying.
Question 3 of 5
A patient has a lung compliance of 0.2 L/cmH₂O and an airway resistance of 4 cmH₂O/L/s. You set pressure-controlled ventilation at 15 cmH₂O at 12 bpm with an I time of 2.5 s. What is the total cycle time?
Correct Answer: D
Rationale: Total cycle time = 60 seconds / respiratory rate = 60 / 12 = 5 seconds.
Question 4 of 5
Which of the following factors does NOT affect the rate of oxygen diffusion across the alveolar membrane?
Correct Answer: D
Rationale: Pulmonary artery pressure affects blood flow, not the diffusion rate of oxygen across the alveolar membrane, which depends on pressure gradient, thickness, and surface area.
Question 5 of 5
What is the first line of treatment for OSA?
Correct Answer: D
Rationale: CPAP (continuous positive airway pressure) is the first-line treatment for obstructive sleep apnea, maintaining airway patency.