Circulation Aids

Question 1

What can artificial blood do in emergency’s?

Answer 1

Keep you alive.

Question 2

What is artificial blood made of?

Answer 2

A salt solution (saline).

Question 3

What is the artificial blood used to replace?

Answer 3

It is used to replace the lost volume of blood.

Question 4

Is artificial blood safe?

Answer 4

Yes, as long as no air bubbles get into the blood.

Question 5

What does artificial blood give patients enough time to do?

Answer 5

The artificial blood gives patients enough time to produce new blood cells.

Question 6

What happens if the artificial blood can’t replace the functions of red blood cells?

Answer 6

Then a blood transfusion is needed.

Question 7

Does a blood transfusion have any dangers?

Answer 7

Yes there is a problems with side effects.

Question 8

What can he heart be repaired with?

Answer 8

Artificial parts.

Question 9

What are artificial hearts?

Answer 9

Mechanical devices that are used to pump blood around a person if their own heart fails.

Question 10

What’s an advantage of a artificial heart?

Answer 10

It is less likely to be rejected by the body’s immune system than donor hearts. This is because there made from metals or plastics so the body doesn’t recognise them as foreign and attack them like it does with living tissue.

Question 11

Name 2 disadvantages of artificial hearts?

Answer 11

Surgery to fit an artificial heart can lead to bleeding.
They don’t work as well as natural ones - parts of the heart could wear out or the electrical motor could fail.
Blood doesn’t flow through artificial hearts as smoothly which which can cause blood clots and lead to strokes.

Question 12

What does the patient have to do when they have an artificial heart?

Answer 12

They have to take drugs to thin their blood and make sure this doesn’t happen, which can cause problems with bleeding if they’re hurt in an accident.

Question 13

What is coronary heart disease?

Answer 13

When the arteries that supply the blood to the muscle of the heart get blocked by fatty deposits.

Question 14

Why does this cause the arteries to become?

Answer 14

Narrow and blood flow is restricted - this can result in a heart attack.

Question 15

What are stents and what do they do?

Answer 15

They are tubes that are inserted inside arteries, this keeps them open making sure blood can pass through to the heart muscles.

Question 16

What do stents reduce?

Answer 16

The risk of a heart attack in people with coronary heart disease.

Question 17

What can happen over time though?

Answer 17

The artery can narrow again as stents can irritate the artery and scar issue grow. The patient also has to take drugs to stop blood clotting on the stent.