CO notes

Question 1

what is the most accurate way of finding co aka the gold standard

Answer 1

Fick

Question 2

normal CO/perfusion rate

Answer 2

4-6 L/min

Question 3

(120BSA)/(A-Vo2Hbg1.3610)
this is known as

Answer 3

fick

Question 4

what is the o2 consumption in the fick formula

Answer 4

numerator
120*BSA

Question 5

what is the average amount of adult consumption per BSA

Answer 5

120

Question 6

What part of the fick formula represents O2 capacity

Answer 6

Hbg*1.36

Question 7

what does the 10 represent for fick

Answer 7

conversion factor from dl tp L

Question 8

what is the O2 content in the fick formula

Answer 8

(A-VO2)Hbg1.36

Question 9

(A-VO2)Hbg1.36

Answer 9

O2 content

Question 10

Hbg*1.36

Answer 10

1hbg can carry 1.36 g of O2=O2 capacity

Question 11

what is sampled for Arterial sat and why

Answer 11

In a normal heart Ao because it’s the easiest to get to than LA because you don’t need to pierce the septum

Question 12

in a normal heart what is sampled for Venous O2 sat and why

Answer 12

PA because it is the most mixed venous

Question 13

the square root of height*weight divided by 3600 give you the

Answer 13

BSA

Question 14

How many inches in a foot

Answer 14

12

Question 15

how many cm in an inch

Answer 15

2.54

Question 16

how many pounds in kg

Answer 16

2.2

Question 17

What units do height and weight have to be in for BSA

Answer 17

cm and kg

Question 18

If pt is on o2 how to sample o2 sat? if emphysema pt then what

Answer 18

take off of o2 for 10 mins, if emphysema, they must stay on o2 the entire time OR you can’t sample

Question 19

O2 content was measured in two ways

Answer 19

Hood/box method measures O2 exhaled vs room O2
Douglas method Tissot spirometer measures o2 exhaled during exercise in a bag

Question 20

O2 content is aka

Answer 20

Vol%

Question 21

O2 carried in hbg

Answer 21

o2 content

Question 22

O2 consumption is aka

Answer 22

uptake

Question 23

normal O2 consumed

Answer 23

200-300ml

Question 24

Normal AO2 content

Answer 24

20vol%

Question 25

Normal VO2 content

Answer 25

15vol%

Question 26

Normal A-VO2 difference

Answer 26

5vol%

Question 27

Vol% is aka

Answer 27

A-VO2*Hgb*1.36

Question 28

Ml's of O2 per 100 mL's

Answer 28

vol%

Question 29

CO=HR(SV)

Answer 29

angiographic CO

Question 30

SV/EDV=

Answer 30

EF

Question 31

CO*(AVO2)=

Answer 31

O2 consumption

Question 32

Normal range for CI

Answer 32

2-4

Question 33

CO/BSA=

Answer 33

CI

Question 34

SV/BSA=

Answer 34

SVI

Question 35

120/(avo2)(Hbg)(1.36)(10)=

Answer 35

BSA

Question 36

Normal range for BSA

Answer 36

2-3 M^2

Question 37

what can you use to find BSA if not for the formula

Answer 37

DUbois

Question 38

Thermodilution the smaller teh curve the better/worse the CO

Answer 38

better

Question 39

Where does the injectate go for thermodilution

Answer 39

RA

Question 40

where do you sample for thermodilution

Answer 40

5 times in the PA

Question 41

what is the formula for thermodulition

Answer 41

Stewart hamilton

Question 42

Taking CO 5 times and eliminating the highest and lowest while averaging out the remaining three is called

Answer 42

stewart hamilton

Question 43

normal range for stroke volume

Answer 43

55-70%

Question 44

what is larger the SV or ESV

Answer 44

ESV

Question 45

EDV-ESV=

Answer 45

SV

Question 46

EF*EDV=

Answer 46

SV

Question 47

CO/HR=

Answer 47

SV

Question 48

the outer line of an LV gram for angiographic CO represents

Answer 48

EDV

Question 49

the inner line for LV gram for angiographic CO is known as

Answer 49

ESV

Question 50

If you have a PDA/ASD where are you sampling AVo2

Answer 50

Vo2 IVC/SVC (flamm) Ao2 AO

Question 51

If you have an VSD what are you sampling

Answer 51

Vo2 RA Ao2 AO

Question 52

Pa sat=90 =AO=90

Answer 52

PDA/ASD

Question 53

increase in RA RV and PA with the left side being normal means you have

Answer 53

ASD

Question 54

elevated and RA=PA with left side being normal means you have a

Answer 54

VSD

Question 55

Higher A-vo2 difference=

Answer 55

lower CO

Question 56

lower CO=

Answer 56

HF

Question 57

if CO of fick is greater than LVMF than you have a

Answer 57

MR

Question 58

(1high IVC+3SVC)/4=

Answer 58

MVo2

Question 59

what is the flamm formula

Answer 59

1ivc+3svc/4

Question 60

what is used to find mixed venous o2 content when there is a left to right shunt

Answer 60

flamm formula