CRITICAL CARE QUESTIONS WITH 100%
CORRECT ANSWERS 2026-2027
# Term Definition
1 Formula for MAP? MAP= COx SVR
2 Formula for C.I.? C.I. = CO/BSA
3 Kidney (25%) then Brain (15%) Heart gets 5%
What organ gets the highest
percentage of C.O.?
4 What does PCWP measure?
preload (linearly related to LVEDP and filling pressures)
5 Definition of afterload? resistance against the ventricle contracting
6 Formula for stroke volume? SV= LVEDV-LVESV
7 Formula for ejection fraction? stroke volume/LVEDV
8 What determines EDV preload and ventricle distensibility
9 What determines ESV contractility and afterload
10
Up to what heart rate does cardiac 120-150 (then begins to decrease bc of decreased
output increase? diastolic filling time)
11 20%
What percentage of LVEDV does the
atrial kick account for?
12 What is the Anrep effect?
automatic increase in contractility secondary to increase
in afterload
, 13 What is the Bowditch effect?
automatic increase in contractility secondary to increase
in heart rate
14 27mmHg
What is the normal p50 (50% of O2
receptors are saturated)
15 Causes of increased SvO2
Occurs with increased shunting of blood or decreased
O2 extraction sepsis, cirrhosis, cyanide toxicity,
hyperbaric O2, hypothermia, paralysis, coma
# Term Definition
16 Causes of decreased SvO2
Increased O2 extraction (Malignant
hyperthermia) or decreased O2 delivery (low O2 sat, low
CO, decreased hemoglobin)
17 Factors that can effect PCWP
pulmonary HTN, mitral stenosis, mitral regurgitation,
high PEEP, poor LV compliance
18
What zone should a Swan Ganz
Zone III ( less respiratory influence on wedge pressure)
catheter be placed in?
19 What do you do if you see hemoptysis
after flushing a swan-ganz catheter? Increase PEEP to tamponade bleeding, mainstem
intubate non-affected side, place Fogarty balloon down
mainstem on affected side May need thoracotomy and
lobectomy
20
What is an absolute right-sided mechanical valve relative = previous
contraindication to a Swan-Ganz pneumonectomy, left BBB, recent pacemaker, right-
catheter? sided endocarditis
21 Swan Ganz catheter
How can you measure pulmonary
vascular resistance?
22 end-expiration
When during the respiratory cycle do
you measure wedge pressure
CORRECT ANSWERS 2026-2027
# Term Definition
1 Formula for MAP? MAP= COx SVR
2 Formula for C.I.? C.I. = CO/BSA
3 Kidney (25%) then Brain (15%) Heart gets 5%
What organ gets the highest
percentage of C.O.?
4 What does PCWP measure?
preload (linearly related to LVEDP and filling pressures)
5 Definition of afterload? resistance against the ventricle contracting
6 Formula for stroke volume? SV= LVEDV-LVESV
7 Formula for ejection fraction? stroke volume/LVEDV
8 What determines EDV preload and ventricle distensibility
9 What determines ESV contractility and afterload
10
Up to what heart rate does cardiac 120-150 (then begins to decrease bc of decreased
output increase? diastolic filling time)
11 20%
What percentage of LVEDV does the
atrial kick account for?
12 What is the Anrep effect?
automatic increase in contractility secondary to increase
in afterload
, 13 What is the Bowditch effect?
automatic increase in contractility secondary to increase
in heart rate
14 27mmHg
What is the normal p50 (50% of O2
receptors are saturated)
15 Causes of increased SvO2
Occurs with increased shunting of blood or decreased
O2 extraction sepsis, cirrhosis, cyanide toxicity,
hyperbaric O2, hypothermia, paralysis, coma
# Term Definition
16 Causes of decreased SvO2
Increased O2 extraction (Malignant
hyperthermia) or decreased O2 delivery (low O2 sat, low
CO, decreased hemoglobin)
17 Factors that can effect PCWP
pulmonary HTN, mitral stenosis, mitral regurgitation,
high PEEP, poor LV compliance
18
What zone should a Swan Ganz
Zone III ( less respiratory influence on wedge pressure)
catheter be placed in?
19 What do you do if you see hemoptysis
after flushing a swan-ganz catheter? Increase PEEP to tamponade bleeding, mainstem
intubate non-affected side, place Fogarty balloon down
mainstem on affected side May need thoracotomy and
lobectomy
20
What is an absolute right-sided mechanical valve relative = previous
contraindication to a Swan-Ganz pneumonectomy, left BBB, recent pacemaker, right-
catheter? sided endocarditis
21 Swan Ganz catheter
How can you measure pulmonary
vascular resistance?
22 end-expiration
When during the respiratory cycle do
you measure wedge pressure
