Spirometers

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  • Created by: Jasmine
  • Created on: 20-02-16 10:03
Tidal Volume (TV)
The volume of air in each breath. Normally around 0.4dm3
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Vital Capacity
The maximum volume of air that can be breathed in or out usually per minute
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Breathing Rate
How many breaths are taken per unit time usually per minute
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Oxygen Uptake
Rate at which a person uses up oxygen- number of dm3 per minute
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Spirometer
It is an oxygen-filled chamber with a movable lid. A person breathes through the tube connected to the oxygen chamber, the lid then moves up or down which has a pen attached to it. This will then causes a spirometer trace
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Soda Lime
It is in the tube that the subject breathes into, it absorbs the carbon dioxide. This ensures that there is only oxygen in the chamber.
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How do you get a valid reading?
Person using it has to wear a nose piece to ensure that they can only breathe in and out of their mouth.
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As the oxygen gets used up by respiration total volume...
Decreases
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Other cards in this set

Card 2

Front

The maximum volume of air that can be breathed in or out usually per minute

Back

Vital Capacity

Card 3

Front

How many breaths are taken per unit time usually per minute

Back

Preview of the back of card 3

Card 4

Front

Rate at which a person uses up oxygen- number of dm3 per minute

Back

Preview of the back of card 4

Card 5

Front

It is an oxygen-filled chamber with a movable lid. A person breathes through the tube connected to the oxygen chamber, the lid then moves up or down which has a pen attached to it. This will then causes a spirometer trace

Back

Preview of the back of card 5
View more cards

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