Principles: Exam I Flashcards by Ray Cross

Q

Sevoflurane

Vapor Pressure

A

170mmHg

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Q

Enflurane

Vapor Pressure

A

175mmHg

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Q

Isoflurane

Vapor Pressure

A

239mmHg

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Q

Halothane

Vapor Pressure

A

243mmHg

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Q

Desflurane

Vapor Pressure

A

669mmHg

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Q

Estimation of PaO2

A

Multiply FiO2 x5

(i.e. FiO2 40% x 5 = PaO2 200mmHg

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Q

Estimation of PAO2

A

Multiply FiO2 x6

(i.e. FiO2 40% x 6 = PAO2 240mmHg

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Q

PAO2-PaO2 Gradient

A

PAO2 - PaO2 = Gradient

Should equal the FiO2 - if not V/Q Mismatch

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Q

Calculating Dissolved O2 in Blood

A

Multiply the partial pressure of O2 by 0.003

i.e. PaO2 300mmHg x 0.003 = 0.9mL O2/100mL

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Q

Calculating Dissolved CO2 in Blood

A

Multiply the partial pressure of CO2 by 0.067

i.e. PaCo2 50mmHg x 0.067 = 3.35mL CO2 / 100mL

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Q

Reynolds <1,000

A

Laminar Flow

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Q

Reynolds >1,500-2,000

A

Turbulent Flow

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Q

Reynolds 2,100

A

Turbulent Flow

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Q

Reynolds <100

A

Turbulent Flow

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Q

Reynolds 101 to 1,000

A

Laminar Flow

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