Physics And Chem Flashcards

1
Q

ISO into sevo vaporizer

A

HLH

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2
Q

Sevo into a ISO vaporizer

A

LHL

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3
Q

Nemonic for gas laws

A

Could these guys possibly be violinist

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4
Q

Boules law application

A

PxV at constant temp inverse relationship

Am u bag being squeezed

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5
Q

Charles law

A

Volume is directly related to temp under constant pressure

LMA in autoclave.

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6
Q

Gay-lussacs

A

Pressure is related to temp at a constant volume

O2 tank on a hot loading dock

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7
Q

Dalton’s law

A

Total pressure is equal to sum of all partial pressures.

Allows us to calculate partial pressure as with pediatric induction

  1. 3o2x 760= 228mmhg
  2. 7n2ox760= 532 mmhg
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8
Q

Henry’s law

A

Gas that dissolves in liquid such as O2,0.003xpa02

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9
Q

Avagadros number

A

6.023x10-23

Number of molecules in a mole
A mole occupies 22.4 liters

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10
Q

Vapor pressure math

A

Second added to container
(760-170)/760= x100= % O2 in the air

170/760= x100= to the pct added

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11
Q

Flicks law

A

Every time a gas is diffusing. (Explains second gas effect)

Diffusion is proportional to membrane area, partial pressure, solubility and inverse to molecular weight.

Explains diffusion hypoxia, and why co2 diffuses faster than O2

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12
Q

Graham’s law

A

Plays off of flicks law, saying that heavier molecules diffuse slower.

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13
Q

Heat loss

Greatest to least

A

Radiation
Convection
Evaporation
Conduction

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14
Q

Law of Laplace

Tension= pressure x radius

A

In blood vessels increase blood pressure= increase tension

In lungs if surfactant is normal then pressure remains constant and will tension increases with radius.
Lungs absent of surfactant the WALL TENSION is constant smaller alveoli empty into larger.

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15
Q

Laminar flow

A

Reynolds number below 1500

Laminar flow- fluid viscosity rules

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16
Q

Turbulent flow

A

Reynolds above 1500, bend in tube greater than 20degree

Turbulent flow- fluid density rules

17
Q

Venturi and Bernoulli

A

Increase in velocity occours simultaneously with decrease in pressure.
Venturi air flows through constricted tube, speeds up, reduces pressure and creates a vacuum.

Venturi mask, nebulizer, jet vent

18
Q

O2 E cylinder

A

700 liters

2000 psi

19
Q

N20

A

1600 liters

750 psi
Psi doesn’t drop until 1/4 remaining in tank.

20
Q

Right shift of oxy/heme curve

A
Increase- 
Hydrogen ions (decrease in PH)
Co2
Temp
2,3 dpg
Sickle and maternal hgb
21
Q

Left shift

A

Decrease in- H ions, so increase ph

Decrease temp
Decrease co2
Decrease 2,3 dpg
Fetal hgb, met hgb, carb oxy hgb

22
Q

Small Vd means

A

Higher plasma concentrations

23
Q

High Vd

A

Low plasma concentration

24
Q

Calculate Vd

A

Total dose / concentration at time 0