Case 66 – update 1

Our pregnant patient with thrombocytosis has ferritin checked which is low at 17ug/l. Her CRP was also checked and it was <5ug/l. She is prescribed oral iron replacement – ferrous sulphate 300mg TDS and a FBC post iron replacement shows:

  • Hb 115g/L (105-165)
  • MCV 84fL (82-98fL)
  • WCC 11×10*9/L (4-11)
  • Neutrophils 8.5×10*9/L (1.5-7.5)
  • Platelets 500×10*9/L (150-450)
  • Ferritin 40ug/L



  • The platelet count is still rasied – what is your next line of investigation?
  • What may you look for on examination of the patient?
  • What features on the blood film would you like to exclude?

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