Physics And Chem

Question 1

ISO into sevo vaporizer

Answer 1

HLH

Question 2

Sevo into a ISO vaporizer

Answer 2

LHL

Question 3

Nemonic for gas laws

Answer 3

Could these guys possibly be violinist

Question 4

Boules law application

Answer 4

PxV at constant temp inverse relationship

Am u bag being squeezed

Question 5

Charles law

Answer 5

Volume is directly related to temp under constant pressure

LMA in autoclave.

Question 6

Gay-lussacs

Answer 6

Pressure is related to temp at a constant volume

O2 tank on a hot loading dock

Question 7

Dalton’s law

Answer 7

Total pressure is equal to sum of all partial pressures.

Allows us to calculate partial pressure as with pediatric induction

0. 3o2x 760= 228mmhg
1. 7n2ox760= 532 mmhg

Question 8

Henry’s law

Answer 8

Gas that dissolves in liquid such as O2,0.003xpa02

Question 9

Avagadros number

Answer 9

6.023x10-23

Number of molecules in a mole
A mole occupies 22.4 liters

Question 10

Vapor pressure math

Answer 10

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

170/760= x100= to the pct added

Question 11

Flicks law

Answer 11

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

Question 12

Graham’s law

Answer 12

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

Question 13

Heat loss

Greatest to least

Answer 13

Radiation
Convection
Evaporation
Conduction

Question 14

Law of Laplace

Tension= pressure x radius

Answer 14

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.

Question 15

Laminar flow

Answer 15

Reynolds number below 1500

Laminar flow- fluid viscosity rules

Question 16

Turbulent flow

Answer 16

Reynolds above 1500, bend in tube greater than 20degree

Turbulent flow- fluid density rules

Question 17

Venturi and Bernoulli

Answer 17

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

Question 18

O2 E cylinder

Answer 18

700 liters

2000 psi

Question 19

N20

Answer 19

1600 liters

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

Question 20

Right shift of oxy/heme curve

Answer 20

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

Question 21

Left shift

Answer 21

Decrease in- H ions, so increase ph

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

Question 22

Small Vd means

Answer 22

Higher plasma concentrations

Question 23

High Vd

Answer 23

Low plasma concentration

Question 24

Calculate Vd

Answer 24

Total dose / concentration at time 0