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27-12-2022
Chemistry

Answered

All of the following variables related to the collection of blood may falsely increase the potassium levels EXCEPT:
Drawing a purple-top EDTA tube prior to a red-top tube.
Mixing the blood collection tube aggressively.
Pouring some sample from a purple-top EDTA tube into a red-top tube to make up for low collection volume.
Using a 21 G needle with a 10 mL collection tube.

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