ICC Ventilator Session

Question 1

The ARDSNet trial showed that ______________.

Answer 1

tidal volume of 6 cc/kg of IBW led to decreased mortality compared to 12 cc/kg of IBW

Question 2

Those with COPD have what on inspiratory hold?

Answer 2

Increased difference between PIP and plateau pressure due to increased airway resistance

Question 3

What is auto-PEEP?

Answer 3

Air stacking

In those with COPD, the airways collapse due to loss of elasticity. The air that is pushed into their alveoli will not escape. This leads to increased intrathoracic pressure which can decrease preload.

Question 4

How do you treat auto-PEEP with hypotension?

Answer 4

Disconnect the ventilator and let them expire.

Question 5

How can you prevent auto-PEEP?

Answer 5

There are a couple ways:
•Decrease the RR to allow for longer expiration.
•Increase inspiratory flow to allow for longer expiration.
•Decrease the I:E ratio.

Question 6

Assist control encompasses what two settings?

Answer 6

• Pressure control

* Volume control

Question 7

Review the system of reporting blood gases.

Answer 7

pH/PaCO2/PaO2/HCO3

Remember as PCOB.

Question 8

Review the system of reporting ventilator settings.

Answer 8

RR/tidal volume/FiO2/PEEP

Remember as RMFP.

Question 9

The difference between PIP and the plateau is ___________.

Answer 9

airway resistance

Question 10

What maneuver do you do to test plateau pressure?

Answer 10

Inspiratory hold

Question 11

Decreased Vte means _______________.

Answer 11

that the amount of air exhaled is less than expected (which could be from a deflated cuff or PTX)