A 27-year-old woman received from the emergency department is on a nasal cannula at 5 L/min. Approximately what FiO₂ is this patient receiving?

Question

Quizplus · Accepted Answer

Estimating the FiO₂ provided by low-flow systems: For patients with a normal rate and depth of breathing, each liter per minute of nasal O₂ increases the FiO₂ approximately 4%. For example, a patient using a nasal cannula at 4 L/min has an estimated FiO₂ of approximately 37% (21 + 16).

A 27-Year-Old Woman Received from the Emergency Department Is on a Nasal