Table 1

Classification of preoperative anaemia8

Blood resultsClassification
Ferritin <30 mcg/LAbsolute iron deficiency
Ferritin 30-100 mcg/L and CRP >5 mg/LIron deficiency in presence of inflammation
Ferritin 30-100 mcg/L and CRP ≤5 mg/L and transferrin saturation <20%Probable iron deficiency
Ferritin 30-100 mcg/L and CRP ≤5 mg/L and transferrin saturation ≥20%Restricted iron stores for significant blood loss
Ferritin >100 mcg/L and CRP ≤5 mg/LNon-iron deficiency anaemia
  • Management algorithm for preoperative anaemia should be agreed locally with engagement of multidisciplinary team.

  • CRP, C-reactive protein.