From: A narrative review on trans-nasal pulmonary aerosol delivery
Studies | Population | Breathing pattern | HFNC flow (L/min) | Inhaled dose (%) | |
---|---|---|---|---|---|
Trachea | Nasal cannula | ||||
Adult | Distressed breathing Vt 750 mL, RR 30 bpm, I:E = 1:1, Ti 1 s, inspiratory flow 45 L/min | 30 | 10.3 | 13.0 ± 3.0 | |
45 | 6.7 | 33.0 ± 5.0 | |||
60 | 5.1 | 25.0 ± 2.0 | |||
Adult | Quiet breathing: Vt 500 mL, RR 15 bpm, I:E = 1:1, Ti 2 s, inspiratory flow 15 L/min  | 10 | 5.4 ± 2.8 | 26.7 ± 1.3 |