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Potassium Homeostasis: Part 1

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Uploaded by on Nov 5, 2009

A freshman/sophomore pre-nursing discussion on how the body maintains homeostasis of potassium. Topics discussed include why potassium is important, what are the names for deviations of concentration below and above homeostatic levels, causes of those deviations, effects of those deviations, and how the major methods the body uses to correct those deviations.

A copy of this diagram can be found at

http://www.kirkwood.edu/pdf/uploaded/695/potassium_homeostasisyt.pdf

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  • In general, potassium in the extracellular fluid has an inhibitory effect on calcium ion inward flow. IN hypokalemia, calicum ions entry into the cardiac muscle cells increases and enhances the contractility of cardiac muscles cells. I think u said the opposite in your presentation.

    Otherwise a very good presentation

  • All I can say is Wow! Thank you so much. This was extremely helpful.

  • Great teaching skills!

  • What a great presentation! Thank you for all the info.

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