ATI RN
NCLEX Questions on Oxygenation and Perfusion Questions
Question 1 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 2 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 3 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%.
Question 4 of 5
Which of the following would be a contraindication to inserting a nasopharyngeal airway?
Correct Answer: C
Rationale: Head trauma, especially with suspected basilar skull fracture, contraindicates nasopharyngeal airway use due to risk of cranial entry.
Question 5 of 5
What chemical mediator is associated with type IV delayed hypersensitivity reactions?
Correct Answer: C
Rationale: Type IV hypersensitivity (delayed, cell-mediated) involves lymphokines (e.g., cytokines) released by T-cells, not histamine or bradykinin.