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Hi there,This is Dr Basu, experienced Internal Medicine Specialist.I am here to address your concerns and provide great service.
Low anion gap is most commonly a lab error.
Other causes include high calcium, potassium or magnesium levels.
IgG multiple myeloma or polyclonal gammopathies 9 due to the increase abnormal serum proteins) can also cause low anion gap rarely.
This is checked by the serum and urine protein electropheresis.
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