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EtCO2, RR, total propofol dose, and length of procedures of patients receiving HFNC during colonoscopy.
| Baseline EtCO2 (mmHg) | Frequency of EtCO2 more than 50 mmHg | RR before/after sedation | Total propofol dose during procedure (mg/kg/hr) | Length of procedures (min) |
|
|---|---|---|---|---|---|
| Patient 1, First time procedure | 38 | 0 | 21/15 | 3.4 | 15 |
| Patient 1, Second time procedure | 28 | 0 | 18/15 | 1.8 | 40 |
| Patient 2 | 36 | 0 | 14/13 | 6.0 | 40 |
| Patient 3 | 36 | 0 | 17/16 | 3.7 | 35 |
EtCO2: end tidal carbon dioxide.
RR: respiratory rate.
