Biology B3 2.4 Artificial or real?

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When are artificial hearts or blood useful?
When donor hearts or blood are not available.
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What can be done with blood from blood donors?
It can be separated into cells and plasma.
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How must donated blood be stored?
It must be refrigerated. Some blood products can be frozen.
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Why is plasma given to patients in a transfusion?
To increase blood volume.
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What is perfluorocarbons (PFC)?
It is the name of an artificial blood.
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What is the advantage of storing artificial blood, such as perfluorocarbons (PFC)?
It does not need to be refrigerated.
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Apart from storage, what other advantage does artificial blood, such as perfluorocarbons have?
It does not contain cells so blood matching is not necessary.
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What are the disadvantages are there to artificial blood?
Artificial blood is expensive and does not carry as much oxygen as whole blood. Some types are insoluble in water and so do not mix well with blood. Some artificial bloods cause unpleasant side-effects.
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What may a patient who suffers heart failure require?
A new heart.
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Why are artificial hearts being developed?
There is a lack of heart donors so artificial hearts are being developed to keep the patients alive.
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What are the advantages of artificial hearts?
They do not need to match the person's tissue and there is no need for immunosuppressant drugs.
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What are the disadvantages of artificial hearts?
There are problems with blood clotting, it involves long stays in hospital and it is expensive.
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Other cards in this set

Card 2

Front

What can be done with blood from blood donors?

Back

It can be separated into cells and plasma.

Card 3

Front

How must donated blood be stored?

Back

Preview of the front of card 3

Card 4

Front

Why is plasma given to patients in a transfusion?

Back

Preview of the front of card 4

Card 5

Front

What is perfluorocarbons (PFC)?

Back

Preview of the front of card 5
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