26
Participants
Start Date
May 20, 2025
Primary Completion Date
November 30, 2025
Study Completion Date
December 30, 2025
HFNC:50L/min
Under high-flow oxygen therapy at a flow rate of 50 L/min, record/monitor for 5 minutes
HFNC:flow=40L/min
Under high-flow oxygen therapy at a flow rate of 40 L/min, record/monitor for 5 minutes.
HFNC:flow=30L/min
Under high-flow oxygen therapy at a flow rate of 30 L/min, record/monitor for 5 minutes.
Face mask oxygen:8L/min
Under face mask oxygen at a flow rate of 8 L/min, record/monitor for 5 minutes.
Face mask oxygen:5L/min
Under face mask oxygen at a flow rate of 5 L/min, record/monitor for 5 minutes.
Nasal cannula oxygen:5L/min
Under nasal cannula oxygen at a flow rate of 5 L/min, record/monitor for 5 minutes.
Nasal cannula oxygen:3L/min
Under nasal cannula oxygen at a flow rate of 3 L/min, record/monitor for 5 minutes.
RECRUITING
Beijing Shijitan Hospital, Beijing
Jian-Xin Zhou
OTHER