Why Is a Cardiopulmonary Bypass Machine Necessary During Heart Surgery

question 22

Multiple Choice

Why is a cardiopulmonary bypass machine necessary during heart surgery?

• A) It's impossible to operate on a beating heart, so the machine has to take over the function of the heart.
• B) Otherwise, the heart will stop beating.
• C) There will not be enough oxygen getting into the lungs.
• D) It isn't always, but it's used to minimize risk.
• E) It's not necessary for heart surgery, but it is necessary for surgery involving the lungs.

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Definitions:

Expected Value

A calculated average of all possible values for a random variable, weighted by their respective probabilities.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 (impossible) and 1 (certain).

Risk Averse

A description of an individual or entity's preference to avoid uncertainty, often choosing options with more predictable outcomes.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1.