ATI RN
NCLEX Questions on Oxygen Therapy Questions
Question 1 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 2 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.
Question 3 of 5
A 50-year-old patient who was nasally intubated for oral surgery is returning to the ICU for ongoing mechanical ventilation. A chest radiograph is ordered to confirm the proper placement of the ETT. Where should the tip of the tube be positioned?
Correct Answer: C
Rationale: The ETT tip should be positioned between T2 and T4 on a chest radiograph, approximately 2-5 cm above the carina.
Question 4 of 5
During spontaneous inspiration, intrathoracic pressures become more positive causing more blood to flow into major thoracic vessels, thereby increasing venous return.
Correct Answer: B
Rationale: During inspiration, intrathoracic pressure becomes more negative, increasing venous return, making the statement false.
Question 5 of 5
Which drug is a mast cell stabilizer used for the prevention of exercise-induced bronchospasm?
Correct Answer: B
Rationale: Nedocromil is a mast cell stabilizer, preventing bronchospasm in conditions like exercise-induced asthma.