📋 Reference sheet · Blood count and clotting

Abnormal white cell count: which line, and what it means

Which white cell line is off, and whether that is a virus, a drug, or a haematology referral.

One page, every threshold with its number and unit. Written and reviewed by practising UK GPs. Last reviewed 29 Jul 2026.

Paediatric values differ

This sheet puts the whole decision on one page: the thresholds that change what you do, each with its number and unit, and the sources each one was checked against.

🔒 Sign up free to see the full sheet

You're viewing a free preview. Create a free account to unlock the rest.

Inside the full sheet 🔒 Thresholds, numbers and units 🔒 Sources checked against the guideline

Sample sheets are open to everyone in the Free Sample Bundle.

Related Ocean Article: Haematological Cancers (Leukaemia, Lymphoma, Multiple Myeloma) · also Glandular Fever (Infectious Mononucleosis), Malaria & Malaria prophylaxis, Roundworm, Lymphoma, Neutropenic Sepsis. Part of the GP reference sheets, result interpretation one page per test or finding.