Free ECMO Patient Monitoring & Clinical Decision-Making Questions and Answers

Question 1

Which parameter best reflects the adequacy of oxygen delivery in ECMO?

Accepted Answer

Arterial oxygen saturation (SpO2)

Answer

Arterial oxygen saturation (SpO2) directly measures the percentage of hemoglobin carrying oxygen in the arterial blood. In ECMO, maintaining adequate SpO2 is crucial as it indicates that sufficient oxygen is being delivered to the patient's tissues. It serves as a direct and immediate indicator of the effectiveness of oxygen delivery by the ECMO circuit and the patient's native lungs.

Question 2

Why is continuous monitoring of lactate levels important in ECMO patients?

Accepted Answer

To evaluate tissue perfusion

Answer

Lactate is a byproduct of anaerobic metabolism, which occurs when tissues do not receive enough oxygen. Elevated lactate levels indicate inadequate tissue perfusion and oxygen delivery, suggesting cellular hypoxia and metabolic stress. Continuous monitoring helps assess the effectiveness of ECMO support in meeting the body's metabolic demands and guides interventions to improve perfusion.

Question 3

What does a sudden drop in mean arterial pressure (MAP) indicate?

Accepted Answer

Possible hypovolemia or sepsis

Answer

A sudden drop in mean arterial pressure (MAP) indicates a significant decrease in systemic vascular resistance or circulating blood volume. Hypovolemia (low blood volume) or sepsis (widespread infection leading to vasodilation) are common causes of hypotension in critically ill ECMO patients. This drop in MAP compromises organ perfusion and requires immediate investigation and intervention to prevent organ damage.

Question 4

Why is neurological assessment important in ECMO patients?

Accepted Answer

To detect cerebral complications

Answer

ECMO patients are at high risk for neurological complications such as stroke (ischemic or hemorrhagic), seizures, and brain injury due to factors like anticoagulation, hypoperfusion, or emboli. Regular neurological assessments are crucial for early detection of these complications. Prompt identification allows for timely intervention, potentially minimizing long-term neurological damage and improving patient outcomes.

Question 5

Which laboratory value indicates kidney function during ECMO?

Accepted Answer

Creatinine

Answer

Creatinine is a waste product filtered by the kidneys, and its blood levels are a primary indicator of kidney function. Elevated creatinine levels suggest impaired renal clearance, which can be a common complication in critically ill ECMO patients due to factors like hypoperfusion, nephrotoxic medications, or pre-existing kidney disease. Monitoring creatinine helps assess kidney health and guide fluid and medication management.

CES - Certified ECMO Specialist Practice Test

CES - Certified ECMO Specialist Practice Test

Free ECMO Patient Monitoring & Clinical Decision-Making Questions and Answers