3 Flashcards

(51 cards)

1
Q

daltons law

A

partial pressure of gas

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2
Q

henrys law

A

at a consstant temp, the amount of gas dissolved is directly proportional to the partial pressure of the gas over the solution

the higher the gas pressure- the more it will dissolve into a liquid

inc pressure- inc solubility

inc temp dec solubility= faster wake up of anesthesia

hypothermia= inc solubility- prolonged metabolism and clearance

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3
Q

example of application of henrys law

A

overpressurizing gas

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4
Q

what is oxygen delivery equation

A

DO2 = CO x [(1.34 x Hgb X SPO2) + (PaO2 x 0.003)] X CO X 10

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5
Q

ficks law

A

diffusion/ transfer rate of gas throught tissue medium (grahms and henrys law)

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6
Q

grahms law

A

speed of gas diffusion

molecular wt of gas determines how fast it diffuses through a membrane

smaller molecules diffuse faster

application: second gas effect; high fgf causes turbulence

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7
Q

what is directly proportional in grahams law

A

?

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8
Q

what is boyles law an example of

A

pneumatic bellows for ppv
diaphragm contraction inc vt

constant temp

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9
Q

what is charles law an ex of

A

constant pressure

lma cuff ruptures in autoclave

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10
Q

what is gay lussac law example of

A

constant volume

o2 tank explodes in hot env

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11
Q

ohms law

A

current passing through conductor is directly proportional to voltage and inversley proportional to resistance

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12
Q

poiseuilles law

A

laminar flow through a tube- vessel diameter, viscosity and tube length

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13
Q

with poiseuilles law, inc radius inc flow by

A

4x. doubling radius inc flow 16x

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14
Q

bernoullis principle

A

relationship between pressure velocity of a moving fluid/ gas

inc velocity = dec pressure
dec velocuty= inc pressure

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15
Q

venturi effect

A

if pressure in tube fallows below atm pressure, air entrapment occurs

ex: jet vent, venturi mask, nebulizer

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16
Q

condana effect

A

jet flow attaching to a durface and following curve of surface- mitral regurg

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17
Q

number 1 nerve injury

A

ulnar- clar injury

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18
Q

how do you hurt radial nerve

A

bp cuff, iv pole, upper extrem tournniquet

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19
Q

obturator injury

A

cannot adduct

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20
Q

sciatic nerve injury

A

excessive hip flexion and exteernal rotation. foot drop

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21
Q

pudental nerve injury

A

from ortho fracture table- loss of penile sensation

22
Q

n injury from crossing legs

A

sural from top leg
superficial peronal of bottom leg

23
Q

saphenous n injury

A

medial leg- no sensation over anteromedial leg

24
Q

common peroneal n

A

stirrups/ lithotomy- foot drop, no foot eversion, no dorsiflexion

25
torso for burns
36%
26
parkland
4 ml LR / % tbsa x kg 1/2 first 8 hrs other half remaining 16 hrs
27
when is fluid shift and edema greatest
within first 12 hours
28
what is first fluid choice
LR -> d5w after 24 hrs no albumin first 24 hrs
29
best way to prevent intraop hypothermia
fluid warmer, forced air blanket
30
what to avoid with intermittent porphoryia
barbituates, etomidate, toradol, amiodarone, ccb
31
what do you dose ibw for obesity
propofol, roc, vec, remi
32
what do you dose lbw with obesity
sux, cisatr, atrac, versed
33
obesity decreased lung volumes
frc, erv, rv
34
what inc with obesity
cc, co, sv
35
ebv in obesity
50 ml/kg
36
bmi calculation
wt in kg / ht in cm
37
ibw men
ht in cm - 100
38
ibw female
ht in cm - 105
39
lbw calculation
ibw x 1.3
40
f=
f = (c x 1.8) + 32
41
ett depth of chest xray
looked at c3-c4 -> first clavicle normal 2-3 cm above carina
42
match item and an intervention to prevet it radiation conduction convention evaporation
-
43
how much na in a 0.9% ns or LR
9g
44
cryo is used to replace clotting factors in which conditions
hemophilia a, b, vwd
45
pt sitting position, bp at ht is 70, what is bp 10 cm higher at head
every 10 cm change bp changes 7.4 mmhg every 1 inch change it changes 2 mmhg
46
loop diuretics site of action HOT SPOT
ascending limb of loop of henle
47
mannitol dose with conversion g/dl to ml
-
48
eye muscle most likely to elicit occulocardiac reflex
medial rectus
49
child pugh score for liver tx parameters
-
50
admistering epidural to mom who refused
battery, assault, intentional tort
51
provider recieving money or financially benefiting from something is called
-