Stock Solution Alligation
by Anu
(London, UK)
A patient needs IV infusion of 0.9% NaCl. You have water for injection and 4.5%w/v stock solution of NaCl. There are no displacement volume effects. How much of the 4.5% w/v needs to be added to a 1000ml WFI bag to produce the desired concentration?
I have tried to do the alligation method and I am not getting the correct answer (as stated in the the textbook).
Any help would be much appreciated.
Thank you!
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Reply: (by Keith)
Here's a video response:
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