Initiation of Mechanical Ventilation Flashcards
Indications for Mechanical Ventilation
The indications for mechanical ventilation are (ASIA)
- Apnea
- Severe Refractory Hypoxemia
- Impending Ventilatory Failure
- Acute Ventilatory Failure
Impending Ventilatory Failure Adult Assessment
Vital Signs
Ventilatory pattern
Paradoxical breathing
Retractions
Progressive muscle weakness
Serial blood gases trending worse
Impending Ventilatory Failure Neonatal Assessment
Vital Signs
Oxygen requirements
Cyanosis
Retractions
Nasal Flaring
Grunting
ACoRN
VD/Vt
Normal: 0.25-0.4
Critical >0.6
RR (bpm)
Normal: 12-20
Critical >35
Vt (ml/kg)
Normal: 4-8
Critical <4
VC (ml/kg)
Normal: 65-75
Critical <10
MIP
Normal: -80 to -100
Critical 0 to -20
Absolute Contraindications
No absolute contradictions to ventilatory support exist if the above indications are present, but… Are you planning to use Invasive or non-invasive support
Normal Lungs
Neo Circuit
Infant circuit with active humidity
Normal Lungs
Ped Circuit
>25 kg uses adult/passive (unless indications for active)
<25 kg use infant circuit with active humidity
Normal Lungs
Adult Circuit
Adult circuit with passive humidity (unless indication for active)
Normal Lungs
PEEP
Match to the FiO2 (once it is weaned to required level); consider optimal PEEP/open lung ventilation
Watch for CV compromise
Normal Lungs
Neo PEEP
6 cmH2O
Normal Lungs
Ped PEEP
5 cmH2O
Normal Lungs
Adult PEEP
5 cmH2O
Normal Lungs
Ti
Adjust for pressure equilibrium
Note I:E
Normal Lungs
Neo Ti
0.3-0.4 sec
Normal Lungs
Teen Ti
0.8-1 sec
Normal Lungs
Child Ti
0.7-0.8 sec
Normal Lungs
Pre-School Ti
0.6-0.8 sec
Normal Lungs
Toddler Ti
0.5-0.75 sec
Normal Lungs
Infant Ti
Infant 0.35-0.55 sec
Normal Lungs
Adult Ti
0.8-1.2 sec
Normal Lungs
Adult MV
~100 mL/min/kg
Initially adjusted based on PaCO2
MV may be higher if the pt is febrile
Normal Lungs
RR
Assess ofr auto triggering and auto PEEP
Normal Lungs
RR
Assess ofr auto triggering and auto PEEP
Normal Lungs
Neo RR
40-50 bpm
Normal Lungs
Ped RR
Infant 30-50 bpm
Toddler 24-40 bpm
Pre-School 20-35 bpm
Child 18-30 bpm
Teen 12-20
Normal Lungs
Adult RR
12-16 bpm
Normal Lungs
Vt
Want a plateu pressure <30 cmH2O
Normal Lungs
Neo Vt
5 ml/kg
Normal Lungs
Ped Vt
6-8 ml/kg
Normal Lungs
Adult Vt
6-8 ml/kg