Table 3.

LUS practice details of the 327 experienced participants in clinical work

Questions	n (%)
Which probes used for LUS (multi-choice)
Curvilinear probe	282 (86.2%)
Linear probe	173 (52.9%)
Phased array probe	57 (17.4%)
Can you practice LUS by the BLUE protocol?
Yes	176 (53.8%)
No	151 (46.2%)
Other LUS protocols that you use (multi-choice)
Eight Zone Examination	101 (30.9%)
Twelve Zone Examination	82 (25.1%)
Twenty-eight Zone Examination	9 (2.8%)
PLUE Protocol	88 (26.9%)
No Protocol	100 (30.6%)
Can you evaluate aeration in different lung zone by semi-quantitatively LUS score?
Yes	83 (25.4%)
No	244 (74.6%)
Do you change the respiratory therapy strategy according to LUS results?
Never	7 (2.1%)
Rarely	31 (9.5%)
Sometimes	107 (32.7%)
Frequently	182 (55.7%)
Does the clinician approve of your change according to LUS results?
Reject	3 (0.9%)
Rarely accept	42 (12.8%)
Sometimes or mostly accept	220 (67.3%)
Completely accept	62 (19.0%)
Will you issue an official report on the results of LUS?
Yes	21 (6.4%)
No	306 (93.6%)
Do you evaluate diaphragmatic dysfunction by diaphragmatic ultrasound (eg. diaphragmatic inspiratory excursion, thickness of diaphragm, and thickening fraction)?
Yes	200 (61.2%)
No	127 (38.8%)
Do you use ultrasound-assisted tracheotomy?
Yes	66 (20.2%)
No	261 (79.8%)
Do you use ultrasound-assisted chest drainage?
Yes	205 (62.7%)
No	122 (37.3%)

LUS lung ultrasound