Kettering E- Mechanical Ventilation

4 primary variables during PPMV

trigger, control/ target, limit, and cyclings

What is required for your patient when you’re changing a patient’s ventilator circuit?

Manual ventilation with a resuscitation bag

Normal NIF

80 cmH20

Normal deadspace (VD/VT)

20-40%

Normal Cst (static compliance)

60-100 mL/ cmH20

Normal shunt (QS/QT)

< or equal to 5%

Normal A-a DO2 on 21%

5-10 torr

Normal A-a DO2 on 100%

25-65 torr

For patients with severe asthma what initial tidal volume should be selected? (How many ccs/ kg)

4-5 mL/ kg

When initiating PC what pressure should you keep under?

Under or equal to 35 cmH2O

What FiO2 should you initiate when setting a pt up on a ventilator

40-60% OR match the same level prior to MV

Dynamic compliance equation

VTspont/ (PIP - PEEP)

Static compliance equation

VTspont/(Pplat-PEEP)

Alveolar VE equation

(VT - BSA)RR

What is the best way to increase VA

Increasing VT

Normal RAW

0.6-2.4 cmH2O/L/sec

Intubated patients can be up to 6

Diseases that cause decreased lung compliance

Atx, pulmonary edema, PN, ARDS

RAW equation

(PIP-Plat)/ Flow in L/ sec

What factor is the biggest influence on PAW (mean airway pressure)

PEEP

Mean airway pressure (PAW), primarily effects _______

oxygenation

1 hz = how many breaths

60 breaths