CO hw Flashcards
SVC 61
IVC 66
Ra 80
RV 81
pa 80
PCW 99
la 98
LV 98
AO 98
FIND MIXED VENOUS O2 sat
flamm (3*0.61+0.66)/4=0.62=62%
EDV 140
ESV 60
FIND SV
SV 140-60=80
SV 75
ESV 90
FIND eDV
ESV 90+75=165
hgb 12
venous sat 58%
FIND VENOUS O2 CONTENT
121.360.58
o2 capacity 19vol%
avo2 sat 35%
what is AVO2 in vol%
19*0.35=6.65vol%
o2 consumption 300 ml/min
Mixed venous o2 content= 15vol%
Arterial o2 content=20vol%
FIND CO
fick excluding 02 capacity: 300/(20-15)(10)
o2 consumption 226ml
a-vo2 difference 6.39vol%
FIND CO
fick minus o2 capacity= 226/(6.39*10)
O2 consumption 200ml/min
hgb 15gm/dl
arterial o2 content=20
Mixed venous o2 content=15
FIND CO
fick; excluding o2 capacity 200/(20-15)(10)=4L/min
hgb 11
FIND o2 capacity
11*1.36=15 vol%
90 kg
158cm
FIND BSA
BSA: square root 90kg*158cm/3600=1.99M
RA 66%
SVC 64%
IVC 68%
PA 67%
PCW 98%
AO 97%
FA 96%
Hgb 10gm/dl
BSA 2.3
FIND CO
Fick:120BSA/(0.97-0.67)101.3610)=6.8L
o2 capacity 20vol%
arterial 02 sat 100%
FIND o2 ARTERIAL CONTENT
20*1=20
co 3.5, 3, 2.9,3.7, 3.3
HR= 3.3
FIND SV
stewart hamilton= remove 2.6 and 3.7 average the rest
3.5+3+3.3/3=3.27
SV: 3.27/75=44ml
hr 105
CO 4.8L
SV: 4.8/105=0.046L
convert L to ml
0.046*1000=46ml
o2 capacity 20vol%
venous 02 sat 65
FIND VENOUS O2 CONTENT
10*0.65=13
hgb 15gm%
o2 sat=90%
FIND o2 content
0.90151.36=20.4
hgb 12gm%
AO 95
PA 65
FIND AV DIFFERENECE
fick: numerator excluding 10
0.3121.36=4.8vol%
EF=56%
EDV 142
FIND SV
SV 0.56*142
250 Ibs
5 ft 6 in
hgb 11.5 gm/dl
SVC 50
ra 53
pa 52
PCW 99
AO 98
FIND CI
fick minus BSA: 120/(0.98-0.52)(11.5)(1.36)(10)=1.67L/min/M^2
GIven:
O2 consumption 100ml/min
Hgb=10 gm/dl
AO 95%
LV 95%
RA 74%
PA 75%
FIND CO
fick: 100/(0.95-0.75)*10 1.3610= 3.7 L/min
height 62 in
weight 118 Ibs
hgb 9.4
IVC 54
svc 50
RA 53
RV 52
FA 96
FIND CO
BSA: square root ht wt in cm and kg and divided by 3600=1.53
fick: 120*1.53/(0.96-0.52)(1.36)(9.4)(10)=3.3L/min
OR
120/(0.96-0.52)(1.36)(9.4)(10)=3.3L/min
