abnormal full blood count

Last edited 10/2019 and last reviewed 07/2023

Abnormal FBC Results Guidance - In adults

Abnormal FBC in Adults (click on links in tables)

Considered in terms of :

Haemoglobin abnormalities:

Polycythaemia

 

Anaemia

 

White Cell Count abnormalities:

Neutrophils

Lymphocytes

Eosinophils

Monocytes

Platelet Abnormalities

 

NB - Abnormalities affecting more than one cell type are more likely to be due to bone marrow causes rather than reactive. Always consider earlier referral when the patient is unwell.