Airway & VentilationCâu 20 / 100
What oxygen flow rate is typically used with a bag-valve mask to maximize delivered oxygen concentration?
a.2 L/min
b.4 L/min
c.6 L/min
d.15 L/min
Giải thích
A BVM connected to an oxygen reservoir at 15 L/min can deliver nearly 100 percent oxygen. Adequate flow keeps the reservoir bag full so each ventilation delivers high-concentration oxygen.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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