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Diagnosis of iron deficiency anaemia
  1. O M Jolobe
  1. Retired Geriatrician
  1. Correspondence to:
    Dr O M Jolobe
    Manchester Medical Society, 1 The Lodge, 842 Wilslow Road, Didsbury, Manchester M20 2RN, UK;

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According to Wright et al, taken in isolation, a mean cell haemoglobin (MCH) of <25 pg is more likely to predict a significant haematological response to a trial of iron replacement therapy than a mean cell volume (MCV) of <75 fl, on its own.1 My own approach to identifying which of the two red blood cell indices, namely MCH and MCV, was the stronger predictor of iron deficiency was to …

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  • Competing interests: none declared