📋 Reference sheet · Blood count and clotting

CRP, ESR and plasma viscosity

CRP, ESR and plasma viscosity move at different speeds. Which to send, and when.

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

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: Polymyalgia Rheumatica (PMR) · also Haematological Cancers (Leukaemia, Lymphoma, Multiple Myeloma), Cancer with Vague Symptoms, Giant Cell Arteritis (GCA). Part of the GP reference sheets, result interpretation one page per test or finding.