Exam (elaborations)
ECMO SPECIALIST FINAL EXAM
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ECMO SPECIALIST FINAL EXAM...
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ECMO SPECIALIST FINAL EXAMMultistage cannulas are solely used for drainage.
Central Cannulation
inserted directly to the right atrium, with a multistage cannula.
What is the most important thing that contributes to flow?
Cannula Size
What happens if there is too much pressure?
Risk of RBcs lysis.
How does ECMO work?
allows for systemic perfusion and gas exchange.
allow the heart and lungs to rest.
bridge to a different type of support or transplant.
The patient's condition must be reversible.
V-A ECMO
Offers respiratory and hemodynamic assistance.
The majority of blood flows through a circuit, bypassing the usual cardiopulmonary
circulation.
,Drains blood from the central vein and returns to the arterial side.
V-V ECMO
is used to let the lungs rest.
Blood is drained from the primary vein and returned to it.
Dead space ventilation
The amount of air that does not reach the alveoli per minute
Does not participate in gas. The exchange might range from 100 to 200 ml.
Contraindications to ECMO?
In some facilities, the ventilation time may be
Absolute Neutrophil Count
CNS bleeding or expansion
Failure to recover CNS Damage
age
Weight BMI (may vary with facility but is connected with bad outcomes).
Roller Head Pump
occlusive
Preload dependant.
Ensure preload to prevent cavitation.
Afterload is independent.
, Circuit rupture is conceivable with occlusion.
Positive displacement--check occlusion = hemolysis.
What indications of hemolysis are commonly linked with?
Hyperkalemia, loss of blood, and oxygen carrying capacity.
What are the causes of hemolysis?
Chattering, sucking down, high neg-venous pressure, high art line pressures, and
decreased oxygenator patency
Pump thrombus
centrifugal
(non-occlusive)
- No need to check occlusions.
- preload and AL dependant.
-output diminishes with resistance.
-requires the usage of a flow sensor (post-oxygenator).
oxygenator
an artificial device that operates like the lung by exchanging oxygen and carbon
dioxide with the blood
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