ATI RN
NCLEX Questions on Oxygenation and Perfusion Questions
Question 1 of 5
A nurse providing care of a patient's chest drainage system observes that the chest tube has become separated from the drainage device. What would be the first action that should be taken by the nurse in this situation?
Correct Answer: D
Rationale: When a chest tube becomes separated from the drainage device, the nurse should submerge the end in water, creating a water seal, but allowing air to escape, until a new drainage unit can be attached. This is done instead of clamping to prevent another pneumothorax. Then the nurse should assess vital signs and notify the health care provider.
Question 2 of 5
This is the enzyme secreted by the pancrease that completes the protein digestion
Correct Answer: A
Rationale: Trypsin, secreted by the pancreas, completes protein digestion by breaking peptides into amino acids.
Question 3 of 5
Which of the following provides the richest source of Iron per area of their meat?
Correct Answer: C
Rationale: Pork liver is the richest source of heme iron, providing significantly more per serving than other options.
Question 4 of 5
Which among this food is the richest source of Iron?
Correct Answer: C
Rationale: Mongo (mung beans) is a rich plant-based source of iron, higher per serving than the other options.
Question 5 of 5
For every 1 LPM increase in oxygen to a low flow delivery device such as nasal prongs, the approximate FiO₂ will increase by:
Correct Answer: C
Rationale: With nasal prongs, each 1 LPM increase above room air (21%) adds approximately 4% to the FiO₂, so the correct answer is 4%.