ECMO Specialist Test Review Exam Questions with Answers Latest Update
ECMO Specialist Test Review Exam Questions
with Answers Latest Update
Who is the 'father' of ECMO? - ✔-Robert Bartlett
First successful neonate ECMO run? - ✔-Esperanza in 1975
How does gas exchange occur at the alveoli and pulmonary capillaries? - ✔-Diffusion (area of higher
concentration to an area of lower concentration)
How fast does gas exchange occur at the alveoli and pulmonary capillaries? - ✔-3/4 of a second
What are the 4 components of oxygen delivery? - ✔-1. Cardiac Output
2. Hemoglobin Concentration
3. Hemoglobin Saturation
4. Dissolved Oxygen
Ideal DO2/VO2 Ratio? - ✔-4:1
What is the metabolic rate of the heart? - ✔-The heart consumes 70-75% of the oxygen it is supplied
What determines VO2? - ✔-1. Cell Metabolism
2. Mass and Activity
3. Thyroid, Hypothalamus, and Catecholamines
Facts about SVO2: - ✔-- Measures global O2 consumption and utilization
- Normal is 65-75%
- SvO2 = DO2-VO2
- <50% will lead to anaerobic metabolism (lactic acid production)
ECMO Specialist Test Review Exam Questions with Answers Latest Update
, ECMO Specialist Test Review Exam Questions with Answers Latest Update
Oxygenation is controlled by: (gas exchange with membrane lung) - ✔-- The amount of O2 added to
the inlet blood (Starting CaO2)
- Blood Flow
- Surface Area
- Rated flow (tested in lab)
CO2 is controlled by: (gas exchange with membrane lung) - ✔-- Sweep gas flow
- Percent of O2 in sweep gas
- Surface area
Oxygen/CO2 Transport: - ✔-- 98.5% of oxygen is bound to hemoglobin; 1.5% is dissolved in the plasma
- HCO3 60%, carbaminohemoglobin 30%, dissolved in plasma 10%
CaO2 Formula - ✔-CaO2 = [(Hgb x 1.34) x SaO2] + [PaO2 x 0.003]
Use decimal for SaO2 only
Normal is 20mL/dL (>15 mL/dL is GREAT for ICU patients)
DO2 Formula - ✔-CaO2 x 10 x CO
Normal is 1000 mL/min
With VA ECMO use total CO (native + ECMO flow for calculation)
With VV ECMO use total CO (calculate with CO for VV ECMO formula)
VO2 Formula - ✔-CO (SaO2-SvO2) x Hgb x 1.34 x 10
Turn SaO2 and SvO2 into decimals
Normal 200-250 mL/min
With VA ECMO use only native CO for calculation (obtained from FICK)
With VV ECMO use total CO (obtained from CO for VV ECMO Calculation)
ECMO Specialist Test Review Exam Questions with Answers Latest Update
ECMO Specialist Test Review Exam Questions
with Answers Latest Update
Who is the 'father' of ECMO? - ✔-Robert Bartlett
First successful neonate ECMO run? - ✔-Esperanza in 1975
How does gas exchange occur at the alveoli and pulmonary capillaries? - ✔-Diffusion (area of higher
concentration to an area of lower concentration)
How fast does gas exchange occur at the alveoli and pulmonary capillaries? - ✔-3/4 of a second
What are the 4 components of oxygen delivery? - ✔-1. Cardiac Output
2. Hemoglobin Concentration
3. Hemoglobin Saturation
4. Dissolved Oxygen
Ideal DO2/VO2 Ratio? - ✔-4:1
What is the metabolic rate of the heart? - ✔-The heart consumes 70-75% of the oxygen it is supplied
What determines VO2? - ✔-1. Cell Metabolism
2. Mass and Activity
3. Thyroid, Hypothalamus, and Catecholamines
Facts about SVO2: - ✔-- Measures global O2 consumption and utilization
- Normal is 65-75%
- SvO2 = DO2-VO2
- <50% will lead to anaerobic metabolism (lactic acid production)
ECMO Specialist Test Review Exam Questions with Answers Latest Update
, ECMO Specialist Test Review Exam Questions with Answers Latest Update
Oxygenation is controlled by: (gas exchange with membrane lung) - ✔-- The amount of O2 added to
the inlet blood (Starting CaO2)
- Blood Flow
- Surface Area
- Rated flow (tested in lab)
CO2 is controlled by: (gas exchange with membrane lung) - ✔-- Sweep gas flow
- Percent of O2 in sweep gas
- Surface area
Oxygen/CO2 Transport: - ✔-- 98.5% of oxygen is bound to hemoglobin; 1.5% is dissolved in the plasma
- HCO3 60%, carbaminohemoglobin 30%, dissolved in plasma 10%
CaO2 Formula - ✔-CaO2 = [(Hgb x 1.34) x SaO2] + [PaO2 x 0.003]
Use decimal for SaO2 only
Normal is 20mL/dL (>15 mL/dL is GREAT for ICU patients)
DO2 Formula - ✔-CaO2 x 10 x CO
Normal is 1000 mL/min
With VA ECMO use total CO (native + ECMO flow for calculation)
With VV ECMO use total CO (calculate with CO for VV ECMO formula)
VO2 Formula - ✔-CO (SaO2-SvO2) x Hgb x 1.34 x 10
Turn SaO2 and SvO2 into decimals
Normal 200-250 mL/min
With VA ECMO use only native CO for calculation (obtained from FICK)
With VV ECMO use total CO (obtained from CO for VV ECMO Calculation)
ECMO Specialist Test Review Exam Questions with Answers Latest Update
