Physics P3 3.6 A physics case study.

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When do we use physics in hospitals?
Applications of physics are used in hospitals for both diagnosis and therapy. Whenever blood pressure (or temperature) is measured, an ECG recording is used, an endoscope is used, a scanner is used.
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What is measured through physics in hospitals?
Blood pressure, ECG (electrocardiogram) potential differences generated by the heart and exposure to ionising radiation.
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What is the disadvantage of using a CT scanner?
A CT scanner uses X-rays which are ionising radiation and can therefore damage living tissue.
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What does an endoscope contain and why is it used?
Bundles of fibre optics and is used to look inside the body without making large incisions.
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Why are X-rays used?
To take pictures of suspected broken bones.
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Why are CT scanners used?
To build up digital pictures of a cross-section through the body.
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Why are MR scanners used?
They use radio waves to produce detailed digital pictures of the body.
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Which part of the electromagnet spectrum is used in a CT scanner?
X-rays.
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Why do broken bones show up on X-rays?
X-rays are absorbed by bone.
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**IN THE EXAM YOU WILL BE EXPECTED TO APPLY YOUR PHYSICS KNOWLEDGE TO UNFAMILIAR SITUATIONS**
**LOOK UP DIAGRAM OF INITIAL HOSPITAL TESTS IN RELATION TO PHYSICS**
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Other cards in this set

Card 2

Front

What is measured through physics in hospitals?

Back

Blood pressure, ECG (electrocardiogram) potential differences generated by the heart and exposure to ionising radiation.

Card 3

Front

What is the disadvantage of using a CT scanner?

Back

Preview of the front of card 3

Card 4

Front

What does an endoscope contain and why is it used?

Back

Preview of the front of card 4

Card 5

Front

Why are X-rays used?

Back

Preview of the front of card 5
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