Mechanical Ventilation

11/19/2008

©2008 Alraiyes

1

Quiz?

11/19/2008

©2008 Alraiyes

2

Ventilation “CO2 wash out”

To wash out CO2 in a mechanical ventilated patient I will adjust the:

A. FiO2 and RR B. Vt, PEEP and RR C. RR, PEEP and FiO2 D. Vt and RR

11/19/2008

©2008 Alraiyes

3

Oxygenation

To increase SpO2 in a mechanical ventilated patient I will adjust the:

A. FiO2 and RR B. PEEP and FiO2 C. RR, PEEP and FiO2 D. Vt and RR

11/19/2008

©2008 Alraiyes

4

Plateau Pressure?

A

B P

C D

V 11/19/2008

©2008 Alraiyes

5

Compliance?

Transthoracic Compliance =

A. C = Vt x RR / PEEP B. C = Pplt / VT C. C = Vt / Pplt - PEEP D. C = Vt / Pk - Pplt

11/19/2008

©2008 Alraiyes

6

FiO2

FiO2 at the mount of Everest = A. 25% B. 15% C. 21% D. 12% 11/19/2008

©2008 Alraiyes

7

What are the functions of any type of mechanical ventilation?

11/19/2008

©2008 Alraiyes

8

Mechanical ventilation

Oxygenation

Ventilation

•FIO2 •PEEP

•RR • Vt

11/19/2008

©2008 Alraiyes

9

P

•Shunting and dead space. •Decrease CO and Renal output. •Nosocomial pneumonia. •Increased ICP.

V

11/19/2008

©2008 Alraiyes

10

Air way

R=P/Q

C=V/P

11/19/2008

©2008 Alraiyes

11

P

V 11/19/2008

©2008 Alraiyes

12

VILI

•Barotrauma. •Oxygen toxicity . •Volutrauma. •Atelectrauma. •Biotrauma. •Translocation of the cells.

P

V 11/19/2008

©2008 Alraiyes

13

P

V 11/19/2008

©2008 Alraiyes

14

Peak

Plateau

Air way

11/19/2008

©2008 Alraiyes

15

P

11/19/2008

©2008 Alraiyes

16

Plateau

P

V 11/19/2008

©2008 Alraiyes

17

WAVES

11/19/2008

©2008 Alraiyes

18

Pressure wave

Ppeak

20

21 0 cmH2O

11/19/2008

©2008 Alraiyes

19

Flow wave

F

60 L/Min

11/19/2008

©2008 Alraiyes

20

Volume wave

Vt

451 mL

11/19/2008

©2008 Alraiyes

21

Modes of ventilation

11/19/2008

©2008 Alraiyes

22

CPAP

11/19/2008

©2008 Alraiyes

23

PS

11/19/2008

©2008 Alraiyes

24

CMV

11/19/2008

©2008 Alraiyes

25

CMV

11/19/2008

©2008 Alraiyes

26

SIMV

11/19/2008

©2008 Alraiyes

27

SIMV + PS

11/19/2008

©2008 Alraiyes

28

Thank You 11/19/2008

©2008 Alraiyes

29