Classification: Mildly elevated
Potassium 5.2 is mildly elevated (mild hyperkalemia) — common in CKD, especially with ACEi/ARB use. Not dangerous at this level but needs watching.
Potassium is the main intracellular electrolyte. The kidneys control its balance — CKD reduces potassium excretion, so levels rise as kidney function falls.
Standard blood test. Fist clenching or hemolysis during the draw can falsely raise it (ask for a repeat if in doubt).
Reference: Normal range per major laboratories; hyperkalemia thresholds per KDIGO • Normal range: 3.5-5.0 mEq/L
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This content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.