| O2 | SpO2 / PaO2 low | ↑ FiO2 then ↑ PEEP |
| CO2 | EtCO2 / pCO2 high | ↑ RR then ↑ volume |
| CO2 | EtCO2 / pCO2 low | ↓ RR |
- Displaced tube
- Obstructed / plugged
- Pneumothorax
- Equipment failure
- Stacked breaths
- Disconnect vent
- O2 100% · bag by hand
- Tube: suction + EtCO2
- Tweak settings
- Sounds equal
LOW PRESSURE disconnect · cuff leak · extubated
| HT | F mL | M mL |
|---|---|---|
| 5'0" | 275 | 300 |
| 5'2" | 300 | 330 |
| 5'4" | 330 | 355 |
| 5'6" | 355 | 385 |
| 5'8" | 385 | 410 |
| 5'10" | 410 | 440 |
| 6'0" | 440 | 465 |
| 6'2" | 465 | 495 |
| 6'4" | 495 | 520 |
- TV 6 mL/kg PBW · range 4–8
- Plat ≤30 · if >30: ↓TV 1 mL/kg → min 4
- RR ≤35 · titrate to pH
- pH 7.30–7.45 · ≥7.15 tolerated
- PaO2 55–80 · SpO2 88–95
- ΔP ≤15 (Amato, post-hoc)
| HAMILTON | EQUIVALENT | FUNCTION |
|---|---|---|
| (S)CMV+ | Volume AC | every breath gets set volume |
| PCV+ | Pressure AC | every breath gets set pressure |
| SIMV+ | SIMV | set rate + free breaths between |
| SPONT | PSV / CPAP | patient drives, vent assists |
| ASV | Adaptive | vent picks rate/volume from %MinVol |
| DuoPAP | BiPAP / APRV | two pressure levels, spont. on both |
| NIV | Mask BiPAP | leak-compensated mask ventilation |
| AGENT | C | R | V |
|---|---|---|---|
| Norepi | ●● | ●● | ●● |
| Epi | ●● | ●● | ●● |
| Vasopressin | ●● | ●● | ●● |
| Dopamine | ●● | ●● | ●● |
| Dobutamine | ●● | ●● | ↓ |
| Phenylephrine | ●● | ↓ | ●● |
| Milrinone | ●● | ●● | ↓ |
| INDUCTION | |
| Etomidate | sec → 3–5m |
| Ketamine | 1m → 10–20m |
| Propofol | <1m → 3–10m |
| PARALYSIS | |
| Succinylcholine | 45s → 6–10m |
| Rocuronium | 1m → 45–70m |
| MAINTENANCE | |
| Fentanyl | 2m → 30–60m |
| Midazolam | 3m → 1–2h |
| Dexmedetomidine | slow → short |
| Propofol gtt | fast on/off |
| Ketamine gtt | steady |
Vent Transfer
Gas exchange corrections, DOPES/DOTTS, tidal volume by height, ARDSnet, escalation to ECMO.