Potassium, RBC details
What Potassium, RBC shows
Most of your body's potassium is held inside cells rather than in the fluid around them. This test measures potassium within your red blood cells, reported as an amount per volume of cells, as a window on potassium inside cells, which a standard serum potassium test does not show. It is sometimes used when looking at overall potassium or electrolyte status. A lower result may suggest reduced potassium inside cells, though the link to whole-body stores is not straightforward. Red cell potassium is not a widely standardized test, and it is interpreted alongside serum potassium, kidney function and your symptoms.
Tests that include Potassium, RBC
This test assesses potassium levels red blood cells to determine intracellular potassium status, which may provide a more accurate assessment of total body potassium levels than serum analysis.
- Potassium, RBC Measures potassium inside your red blood cells, as a look at potassium stored within cells, where most of the body's potassium is held.
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