Mechanical Ventilation 1A Flashcards
What mode provides a stable minute volume and more stable blood gasses?
Volume control
What is TCF?
Tubing Compliance Factor
How do you calculate corrected tidal volume?
Tidal volume - compressible volume
How do you calculate compressible volume?
(PIP - PEEP) x Tubing compliance factor
A normal vital capacity is about ___ to ___.
65-75 mL/kg
What is the minimum acceptable vital capacity?
Normally it must be at least ___.
10 mL/kg (2x tidal volume)
Must be at least 1000.
What’s a typical NIF or MIP?
What’s minimum acceptable NIF or MIP?
Typical is -80.
Minimum acceptable is -20
What is a normal spontaneous tidal volume?
5-8 ml/kg
What is the normal minute ventilation?
What is the maximum acceptable minute ventialtion?
5-6 L/min
10 L/min
What’s MEP?
What’s the minimum acceptable?
Max expiratory pressure
40 cm H2O
What’s the normal VD/VT %?
What’s maximum acceptable
Deadspace
20-40%
Max acceptable: 60%
What’s a normal Cst?
What’s acceptable?
Normal: 60-100 mL/cm H2O
Lowest acceptable: 25
(Unacceptable: Less than 25)
At room air, what’s a normal A-a DO2?
Acceptable?
5-10 mm Hg
Max acceptable: 10-15 mmHg
At 100% FiO2, what’s a normal A-a DO2?
What’s acceptable?
Normal: 25-65 mm Hg
Max acceptable: up to 300
(More than 300: Unacceptable)
What’s a normal Qs/Qt?
What’s acceptable?
Shunting
Normal: 5%
Maximum: 20%
