General

General Tests — a concise, easy-to-understand guide to routine lab investigations (CBC, urine analysis, lipid profile etc.) with purpose, sample info and reference ranges.

RDW slightly high blood test showing mild red blood cell size variation and when it is usually not serious

RDW Slightly High – Is It Serious or Just a Mild Change?

RDW Slightly High – Is It Serious? This is one of the most common questions I hear at the lab counter. A patient looks at the CBC report, notices that RDW is marked slightly high, and immediately worries that something serious is going on. Many people search online and end up reading extreme explanations that

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