Understand Your Medical Results

Clear, evidence-based explanations of laboratory values and biomarkers.

Blood tests and lab reports can be confusing. We explain what common lab values and biomarkers usually mean – in clear, evidence-based language, written for patients and their caretakers.

Popular Lab Values

Explore common laboratory tests and biomarkers. Our educational content is based on clinical guidelines and large medical studies.

How It Works

Three simple steps to understanding your lab results with confidence

You receive a lab result

You see a number, range or flag that isn't immediately clear.

Look up the lab value

Browse or search for the test or biomarker on this site.

We explain the context

We describe what the result usually means and how doctors typically interpret it – based on evidence and without giving medical advice.

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