PDW measures how much your platelets vary in size. It helps assess platelet production and destruction.
Category: Complete Blood Count
Also known as: pdw, platelet distribution width
Reference range: 9–17 % (Source: ABIM)
Standard unit: %
High PDW may indicate active platelet production, often seen in inflammatory conditions or myeloproliferative disorders.
Low PDW indicates uniform platelet size and is generally normal.
Source: MedlinePlus, U.S. National Library of Medicine
Track your PDW over time with BloodId