Electrolytes
Potassium
An electrolyte important for heart rhythm, nerves, and muscles.
electrolyteskidneyheartmuscle
About this biomarker
Potassium helps cells function normally, especially in the heart and muscles. It is tightly regulated by the kidneys and hormones.
Why it matters
Abnormal potassium levels can affect heart rhythm and may need prompt evaluation.
What lower levels may suggest
Low potassium may be seen with vomiting, diarrhea, certain medications, hormone conditions, or low intake.
What higher levels may suggest
High potassium may be seen with reduced kidney function, certain medications, cell breakdown, or hormone problems.
Common tests
Basic metabolic panel, comprehensive metabolic panel, electrolyte panel
Related biomarkers
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