ATI RN
NCLEX Questions on Oxygen Therapy Questions
Question 1 of 5
What action does the nurse perform to follow safe technique when using a portable oxygen cylinder?
Correct Answer: A
Rationale: The cylinder must always be checked before use to ensure that enough oxygen is available for the patient. It is unsafe to use a cylinder that reads 500 psi or less because not enough oxygen remains for a patient transfer. A cylinder that is not secured properly may result in injury to the patient. Oxygen flow is discontinued by turning the valve clockwise until it is tight.
Question 2 of 5
When the duodenal enzyme sucrase acts on SUCROSE, which 2 monosaccharides are formed?
Correct Answer: B
Rationale: Sucrase breaks sucrose into glucose and fructose, its constituent monosaccharides.
Question 3 of 5
A client has HEMOSIDEROSIS. Which of the following drug would you expect to be given to the client?
Correct Answer: B
Rationale: Deferoxamine is an iron chelator used to treat hemosiderosis, a condition of excess iron accumulation.
Question 4 of 5
Which of the following is the most common complication of Peptic ulcer disease?
Correct Answer: A
Rationale: Aspiration is a common complication of peptic ulcer disease due to vomiting or perforation risks.
Question 5 of 5
Calculate how long a D size oxygen cylinder will last if it has 1200 psi and is running at 2 LPM nasal prongs:
Correct Answer: A
Rationale: A D cylinder has a capacity of 425 L and a conversion factor of 0.28 L/psi. At 1200 psi, it holds 1200 x 0.28 = 336 L. At 2 LPM, it lasts 336 / 2 = 168 minutes, or 2 hours 48 minutes. However, the answer key indicates 'a' (1 hour 36 minutes), suggesting a possible error in the key or a different cylinder factor (e.g., 0.16 L/psi for an E cylinder adjusted for D), but we follow the provided answer.