Ch. 6

Question 1

What is the formula for minute ventilation (Ve)?

Answer 1

Ve= Vt•F (frequency)

Question 2

What is the normal Vt range for adults?

Answer 2

6-8 mL/kg

Question 3

What is the normal Vt range for children and infants?

Answer 3

4-8mL/kg

Question 4

When do we use lower Vt rates?

Answer 4

For ARDS patients

Question 5

Why do we use lower Vt rates for ARDS patients?

Answer 5

Protects the lungs and minimizes damaging effects associated with overdistention of the alveoli.

Question 6

A heavier pt will have a higher metabolic rate and Ve
True or False?

Answer 6

True

Question 7

What is the initial respiratory rate on a vent?

Answer 7

10-20bpm
depends on patients position
Make sure your within the range

Question 8

What is the pH for ARDS pts?

Answer 8

7.25-7.45

Question 9

What is used for restrictive diseases?

Answer 9

Lower Vt and higher rates

Question 10

What are the 3 things needed to prevent acidoisis?

Answer 10

•High PEEP
•Low Vt
•High RR

Question 11

What is rate of gas flow?

Answer 11

How fast the inspired gas will be delivered

Question 12

What does Pmean stand for?

Answer 12

Mean airway pressure

Question 13

T or F; shorter “I” times will result in higher peak pressures?

Answer 13

True

Question 14

T or F; slower flows may reduce peak pressures improve gas distribution and increase Paw at the expense of inc Ti.

Answer 14

True