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BIOCHEMISTRY (Sodium (LOW (Normovolaemic? (Too much dextrose, SIADH, Liver…

- - - - Too much dextrose
      - SIADH
      - Liver Disease
      - Diuretics
      - Salt-losing nephropathy
      - Acute Renal failure
    - - Liver disease
      - Nephrotic syndrome
      - Too much dextrose
      - Cardiac Failure
- - - - GI Bleed
      - Steroids
      - Dehydration
- - - - PTH normal or high = Primary hyperparathyrpoidism is likely cause
      - PTH low = Do a myeloma screen, CXR, history and exam for cancer (bone scan also likely o be needed)
- - - - Gilbert's disease
      - Haemolysis