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The following is a rough outline of the important preliminary investigations that may be initiated:

  • stool and urine microscopy and culture
  • hospitalize and observe feeding
  • full blood count and film, followed by serum and ferritin, B12 and folate as indicated
  • creatinine and electrolytes, plus liver and bone function
  • thyroid function and other endocrine investigations
  • sweat test
  • chromosomal analysis
  • metabolic analysis
  • breath test
  • jejunal biopsy

Last reviewed 01/2018