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Wooden clocks oxygen saturation , Oh...

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2007-2009 » Archive through 11 October, 2009 » Wooden clocks oxygen saturation , Oh boy « Previous Next »

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magnum4
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Username: magnum4

Post Number: 717
Registered: 04-2005


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Posted on Monday, 14 September, 2009 - 08:53 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Hi all.

Re the wooden clock question posted elsewhere, anyone do anything???

Re oxygen, I have spent a lot of this year in hospital, One thing that has puzzled me, Maybe someone can explain.

3 or 4 times a day blood pressure was taken, however I only realized last week that OXYGEN saturation is also measured by a simple finger probe?!!! I understand how the pulse rate is done, however I cannot under stand how the oxygen saturation is done???
Any one out there in the know?

(Message edited by magnum4 on 14 September, 2009)
Regards,
Jim
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atferrari
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Post Number: 774
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Posted on Monday, 14 September, 2009 - 09:01 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Related with absorbtion of some kind of light (infra / ultra ?). Seen that but not actually knowing what the nurse was doing.
Agustín Tomás - Buenos Aires - Argentina
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kevinbrunt
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Posted on Monday, 14 September, 2009 - 09:12 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Have a look at the Wikipedia entry for "pulse oximeter". The basic idea is that oxygenated haemoglobin is a different colour to deoxygenated, and by measuring at two wavelengths it's possible to derive the ratios of the two forms. (It also relies on there being a pulse, since the difference in the total amount of light transmitted can be assumed to be due to the haemoglobin.)
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magnum4
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Username: magnum4

Post Number: 720
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Posted on Monday, 14 September, 2009 - 09:44 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Yes Kevin That seems to answer my question alright Thank you
Now the laminated clock anybody ?
Regards,
Jim
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andrew
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Posted on Tuesday, 15 September, 2009 - 07:48 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Hi Jim,

The laminated clock was my query - and I did say I would post results but unfortunately don't have any yet. The clock itself will be easy to make, I think it's just down to a choice of which laminate exhibits the best optical characteristics
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magnum4
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Posted on Tuesday, 15 September, 2009 - 08:11 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Thanks Andrew, I may try this myself also :-)))
Regards,
Jim
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dean_huster
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Post Number: 272
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Posted on Saturday, 26 September, 2009 - 04:15 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Not entirely off-topic since we're talking about oxygen sats. A very recent magazine article has noted that many bystanders are reluctant to perform CPR because of the stigma of the mouth-to-mouth contact and resulting consequences in this day and age. The article notes that chest compressions alone are all that's necessary to give the victim about the same chance of living through the episode as would doing full CPR. The problem with a heart attack is that blood flow stops. The blood contains a LOT of oxygen and to simply get the blood flowing through the brain and organs will minimize bodily damage and deterioration. The procedure is to (1) call the emergency number and (2) begin chest compressions and continue until emergency help arrives.

You can save a life.

Dean

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