Mechanical Ventilation

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Quiz?

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

A. FiO2 and RRB. Vt, PEEP and RRC. RR, PEEP and FiO2D. Vt and RR

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Ventilation “CO2 wash out”

To increase SpO2 in a mechanical ventilated patient I willadjust the:

A. FiO2 and RRB. PEEP and FiO2C. RR, PEEP and FiO2D. Vt and RR

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Oxygenation

P

V

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A

C

B

D

Plateau Pressure?

Transthoracic Compliance =

A. C = Vt x RR / PEEPB. C = Pplt / VTC. C = Vt / Pplt - PEEPD. C = Vt / Pk - Pplt

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Compliance?

FiO2 at the mount of Everest =

A. 25%B. 15%C. 21%D. 12%

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FiO2

What are the functions of any type of mechanical ventilation?

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Mechanical ventilation

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Oxygenation Ventilation

•FIO2•PEEP

•RR• Vt

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P

V

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

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Air

way

R = P / Q

C = V / P

P

V

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P

V

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

VILI

P

V

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Peak

Plateau

Air way

P

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P

V

Plateau

WAVES

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20

0cmH2O

Pressure wave

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21

Ppeak

L/Min

Flow wave

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60

F

mL

Volume wave

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451

Vt

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Modes of ventilation

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CPAP

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PS

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CMV

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CMV

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SIMV

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SIMV + PS

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Thank You