Chapter 6 - Initial vent settings

Question 1

What does increasing Flow produce?

Answer 1

Higher PIPs

Lower I-times

Question 2

What does Decreasing Flow produce?

Answer 2

Longer I-times
Lower PIPs
Improves gas exchange
Increases in MAP

Question 3

What is the rule for changes in temp and Min Vent?

Answer 3

for every change of 1 degree in temp is a change in 9% of min vent

Question 4

As for a ventilation is concerned, What is the best way to assess the patient?

Answer 4

pH

Question 5

As far as delivery of a breath to the patient from a vent, What are we most concerned about?

Answer 5

Alveolar Ventilation.

By calculating tubing compliance, mechanical dead space, physiological dead space, and tidal vol delivered.

Question 6

What are the goals of PSV?

Answer 6

Decrease WOB
Maintain Vt of at least 5 mL/kg
Maintain acceptable RR -

Question 7

COPD or High Raw patients would tolerate Higher or lower flow cycle % and why?

Answer 7

Higher

Because patients have a slower flow rate drop off. Low flow cycles can lead to long uncomfortable I-times.

Question 8

Pulmonary fibrosis or restrictive lung diseases patients would tolerate a Higher or lower Flow cycle % and why?

Answer 8

Lower
Because these patients reach volume faster and exhale quickly, they would benefit from a longer I-time and longer breaths.