help on dot point (1 Viewer)

[strawberry]

can anyone gimme some info on the following dot point??

Analyse information from secondary sources to identify current technologies that allow measurement of oxygen saturation and carbon dioxide concentrations in blood and describe and explain the conditions under which these technologies are used.

thanx heaps

 

[babydoll_]

You talk about pulse oximeters and stuff. Have a look at the Bored Of Studies main page, www.hsc.csu.edu.au, or look up Heinemann biology.

 

[strawberry]

i did...but it doesn't really answer the question...

i handed in my answer to the teacher and she gave me a 2 out of 5

how r u meant to explain the conditions???

 

[jims]

the main thing in this dot pt is the conditions under which each is used, rather than how the things work.

the pulse oximeter is better for monitering the condition of a patient because its reasonably accurate and reliable and provides continuous, real time results.
the ABG analysis is good for the diagnosis of illness because it is very accurate and provides actual values in mm Hg rather than just a % saturation and it measures the CO2 and pH as well as O2. however, there is some delay between taking a blood sample and getting the results, so its not so good for continuous monitering and its more intrusive than the pulse oximeter.