IBW → numbers you can defend

IBW · 70.5 kg

Devine PBW from height and sex. Scale weight 80 kg is not the vent weight.

VT · 420 mL (6 mL/kg)

ATS / this trainer: 6 mL/kg PBW (4–8). Not 10. Not ASV guessing height.

Rate · 16

Start ~16. Rate is the CO₂ knob once VT is 6.

PEEP / O2 · 8 / 50%

Sat band 92–96% (92–96% (trainer band — avoid hyperoxia)). Mean Paw hits MAP — this model does not teleport a number.

Pinsp / TI · 12 cm · 1.0 s

PCV+ Pinsp is a guess at 6 mL/kg. Hold and read Pplat. Live at ΔP ≤14 (trainer / Amato).

Sedation · fentanyl

Drive and MAP fall. Backup rate must be real.

Sat below band

FiO₂ up now. Then PEEP +2 if FiO₂ ≥60% and this is not a tension. Stop at SpO₂ 92–96%.

etCO₂ / PaCO₂ high

Confirm VTE is real. Rate +2 if expiratory flow hits zero. Then Pinsp/VT only if ΔP <14.

Fighting the vent

Fentanyl, ketamine, or they own the rate. Do not add Pinsp as a sedation plan.

Flow never returns to zero

You stacked. Cut rate, shorten TI, Dump (disconnect 6 s). Do not raise rate.

ΔP >14 or Pplat over cap

Cut Pinsp or VT. Live at 6 mL/kg and ΔP ≤14.

MAP falls after you 'fixed' the vent

Drop PEEP/Pinsp first — mean Paw is RV afterload. This model computes MAP from preload and Paw, not a scripted 58. Stacked gas is occult PEEP.

Climbing / cabin

Ask 2,000 ft or sea-level on the train screen. Raise FiO₂ before the next 1,000 ft. Dalton is a vent setting.

Gas is >7 minutes old

Do not treat it. Draw again (90 s cartridge) or fly the patient in front of you.