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Hypokalemia due to Renal Potassium LossAka: Renal Potassium Loss

Definition
1. Hypokalemia with Urine Potassium > 20 meq/day
Blood Pressure Elevated
1. Renin Elevated
  1. Malignant Hypertension
  2. Renovascular disease
  3. Renin secreting tumor
2. Renin Normal
  1. Liddle's Syndrome
3. Renin Low
  1. Aldosterone High
    1. Primary Hyperaldosteronism
    2. Bilateral adrenal hyperplasia
    3. Dexamethasone suppression
  2. Aldosterone Low
    1. Mineralocorticoid ingestion
    2. Congenital Adrenal Hyperplasia
    3. Cushing's Syndrome
    4. Ectopic ACTH
    5. Tobacco chewing
    6. Licorice
Blood Pressure Normal
1. Serum Bicarbonate Low
  1. Renal Tubular Acidosis
2. Serum Bicarbonate High
  1. Urine Chloride Low (<10 meq/L)
    1. Vomiting
  2. Urine Chloride High (>10 meq/L)
    1. Barter's Syndrome
    2. Normotensive primary Hyperaldosteronism
    3. Diuretic use
    4. Severe potassium depletion

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 6/1/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.