Physicis Heat Capacity

Front 1

Heat energy given to an object its temp will ___

Back 1

rise

Front 2

Heat Capacity

Back 2

is the amount of heat that will raise a temp of an object by 1 Kelvin

Front 3

____ is required for a subst to change from solid to liquid and liquid to vapor

Back 3

Heat

Front 4

Latent heat of vaporization: is the heat required to change

Back 4

a unit mass of liquid to a gas at a given temp

Front 5

Latent heat of vaporization is heat required to convert __kg of a liquid to a vapor as a given temp

Back 5

1 kg

Front 6

The Lower the temp the more ___ needed to vaporize

Back 6

heat

Front 7

At the critical temp: Latent heat = 0 liquid will spontaneous ->

Back 7

Gas

Front 8

The vaporization of Ethyl chlorideor alcohol causes ___of the skin

Back 8

cooling

Front 9

Removal of O2 too fast will dec vapor press and make liquid _____.

Back 9

cooler

Front 10

At equilibrium the part press exerted by the vapor is

Back 10

saturated vapor pressure

Front 11

Inc heat of liquid will ___vapor

Back 11

inc vapor

Front 12

Vapor pressure of volatite Anesthetics Halothane

Back 12

=244 244/760= 32% of ATM

Front 13

Vapor pressure of volatite Anesthetics: Forane

Back 13

= 240 240/760= 33% of ATM

Front 14

Vapor pressure of volatite Anesthetics Ethrane

Back 14

= 175 175/760= 23% of ATM

Front 15

Vapor pressure of volatite Anesthetics Sevoflurane

Back 15

= 160 160/760= 21% of ATM

Front 16

Vapor Pressure of Volatile Anesthetics Desflurane

Back 16

= 669 669/760= 88% of ATM

Front 17

Vaporizer will step the % amount administer ____.

Back 17

down

Front 18

% typically administer to patient: Halothane

Back 18

1%

Front 19

% typically administer to patient: Forane

Back 19

3%

Front 20

% typically administer to patient: Ethrane

Back 20

3%

Front 21

% typically administer to patient: Sevoflurane

Back 21

3%

Front 22

% typically administer to patient: Desflurane

Back 22

7%

Front 23

Amount of volatile agent per amount of liquid agent:
Avogadro's hypotheis:

Back 23

1 grm molecular wt of gas (or vapor) occupies 22.4L

Front 24

1 grm molecular wt of halothane will____ occupy

Back 24

22.4L

Front 25

Vapor per ml agent:
1ml agent / ml vapor @ 20C
Halothane

Back 25

1ml agent / ml vapor @ 20C
226

Front 26

Vapor per ml agent
1ml agent / ml vapor @ 20C
Enflurane

Back 26

1ml agent / ml vapor @ 20C
196

Front 27

Vapor per ml agent
1ml agent / ml vapor @ 20C
Isoflurane

Back 27

1ml agent / ml vapor @ 20C
195

Front 28

Vapor per ml agent
1ml agent / ml vapor @ 20C
Sevoflurane

Back 28

1ml agent / ml vapor @ 20C
182

Front 29

Vapor per ml agent
1ml agent / ml vapor @ 20C
Methoxyflurane

Back 29

1ml agent / ml vapor @ 20C
204

Front 30

Vapor per ml agent
1ml agent / ml vapor @ 20C
Desflurane

Back 30

1ml agent / ml vapor @ 20C
207

Front 31

In a Plenum vaporizer the force comes in which direction?

Back 31

Force comes distally

Front 32

In a Draw over vaporizer the force comes in which direction?

Back 32

The patient draws in the vapor

Front 33

What happens if the flow is too fast?

Back 33

It will not pick up the vapor

Front 34

What happens if the flow is too slow?

Back 34

The vapor will be in a higher conc

Front 35

Type of vaporizer that corrects for changes in output due to high or low flow

Back 35

Variable Bypass

Front 36

____in the vaporizer inc surface are to make it flow compensated

Back 36

Wicks

Front 37

Charles Law:
As you ___ temp you __ vapor pressure

Back 37

inc
inc

Front 38

Charles Law:
Inc temp, inc vapor pressure
-> _____ conc of vapor delivered

Back 38

higher

Front 39

Charles Law:
As you ____ temp vapor pressure _____ -less agent delivered

Back 39

dec
dec

Front 40

Charles Law:
Vaporizers are temp compensated with a bimetallic strip thermostat at bottom that ____ gas flow through the bypass as temp ___ forcing more through the vaporizing chamber

Back 40

dec
dec

Front 41

Which is better lower or higher total gas flow.

Back 41

Lower total gas flow is better,
less use of gas, less gas for patient to warm.

Front 42

What does an interlock system prevent

Back 42

Prevents having 2 vaporizers on at same time.

Front 43

Variable bypass vaporizer Flow split at 1% Halothane

Back 43

46:1

Front 44

Variable bypass vaporizer Flow split at 2% Halothane

Back 44

22:1

Front 45

Variable bypass vaporizer Flow split at 3% Halothane

Back 45

14:1

Front 46

Variable bypass vaporizer Flow split at 1% Isoflrane

Back 46

44:1

Front 47

Variable bypass vaporizer Flow split at 2% Isoflurane

Back 47

21:1

Front 48

Variable bypass vaporizer Flow split at 3% Isoflurane

Back 48

14:1

Front 49

Variable bypass vaporizer Flow split at 1% Enflurane

Back 49

29:1

Front 50

Variable bypass vaporizer Flow split at 2% Enflurane

Back 50

14:1

Front 51

Variable bypass vaporizer Flow split at 3% Enflurane

Back 51

9:1

Front 52

Variable bypass vaporizer Flow split at 1% Sevoflurane

Back 52

25:1

Front 53

Variable bypass vaporizer Flow split at 2% Sevo

Back 53

12:1

Front 54

Variable bypass vaporizer Flow split at 3% Sevo

Back 54

7:1

Front 55

Variable bypass vaporizer Flow split at 1% Desflurane

Back 55

138:1

Front 56

MAC =

Back 56

Is volume% at 1 ATM
Minimum Alvelor Concentration
50% Pt will not move to noxious stimuli

Front 57

MAC (vol%) x Pmac1 (mmHg)
Halothane =

Back 57

MAC (vol%) x Pmac1 (mmHg)
.75% x 760 = 5.7

Front 58

MAC (vol%) x Pmac1 (mmHg)
Ethrane

Back 58

MAC (vol%) x Pmac1 (mmHg)
1.68% x 760 = 12.8

Front 59

MAC (vol%) x Pmac1 (mmHg)
Isoflurane =

Back 59

MAC (vol%) x Pmac1 (mmHg)
1.15% x 760= 8.7

Front 60

MAC (vol%) x Pmac1 (mmHg)
Sevoflurane

Back 60

MAC (vol%) x Pmac1 (mmHg)
1.7% x 760 = 12.9

Front 61

MAC (vol%) x Pmac1 (mmHg)
Desflurane =

Back 61

MAC (vol%) x Pmac1 (mmHg)
6% x 760= 45.6

Front 62

The most potent = the __%

Back 62

lesser %
Most potent = Halothane .75%
Least potent = Desflurane 6%

Front 63

General anesthesia = MAC of

Back 63

1 1/3 95% will not move to noxious stimuli.

Front 64

Desflurane Bottle

Back 64

Glass, wrapped in plastic coat (pressure test to 85psi)
-agent specific inj fill sys
-

Front 65

Desflurane Bottle
If bottle got warm -> lead to big ____ in press (boils at 22.8C)

Back 65

Increase

a valve at the top gets tighter with inc press- less likely to leak agent

Front 66

A desflurane vaporizer is called

Back 66

Gas/vapor blender; Tech 6 vaporizer

Front 67

Datex Ohmeda Tec 4
Splitting Ratio

Back 67

Variable bypass(determines carrier gas split)

Front 68

Datex Ohmeda Tec 4
Method of vaporization

Back 68

Flow over (includ Aladin for des, which not require added heat like the Tec 6)

Front 69

Datex Ohmeda Tec 4
Temp compensation

Back 69

automatic temp compensation mech

Front 70

Datex Ohmeda Tec 4
Calibration

Back 70

Calibrated agent specific

Front 71

Datex Ohmeda Tec 4
Position

Back 71

Out of circuit

Front 72

Datex Ohmeda Tec 4
Capacity

Back 72

Tec 4 125ml
Tec 5 300ml
Vapor 19.n: 200ml
Aladin: 250ml

Front 73

Copper Kettle, Vernitrol (original)
Splitting ratio

Back 73

measured flow (operator deter carrier gas split)

Front 74

Copper Kettle, Vernitrol (original)
Method of vaporization

Back 74

Bubble through

Front 75

Copper Kettle, Vernitrol (original)
Temp compensation

Back 75

manual (changes in carrier gas flow) change by room temp

Front 76

Copper Kettle, Vernitrol (original)
Calibration

Back 76

none
multiple agent

Front 77

Copper Kettle, Vernitrol (original)
position

Back 77

out of circuit

Front 78

Copper Kettle, Vernitrol (original)
capacity

Back 78

200-600ml (no longer manufactured)

Front 79

Datex Ohmeda Tec 6 (Desflurane)
Splitting Ratio

Back 79

Dual circuit (carrier gas is not split)

Front 80

Datex Ohmeda Tec 6 (Desflurane)
method of vaporization

Back 80

gas/vapor blender (heat produces vapor which is inj into fresh gas flow

Front 81

Datex Ohmeda Tec 6 (Desflurane)
temp compensation

Back 81

electrically heated to a constant temp (39C) thermostatically controlled)

Front 82

Datex Ohmeda Tec 6 (Desflurane)
Calibration

Back 82

Calibrated agent specific

Front 83

Datex Ohmeda Tec 6 (Desflurane)
Position

Back 83

Out of circuit

Front 84

Datex Ohmeda Tec 6 (Desflurane)
Capacity

Back 84

390ml