The HealthMatters Journal — evidence-based health writing
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Biomarkers

fibrinogen low high meaning result
Biomarkers · 1 min read

What is the Fibrinogen Activity test?

The fibrinogen activity test is also known as a Factor I assay. It’s used to determine the level of fibrinogen in your blood. Fibrinogen,…

Biomarkers · 3 min read

What is a Urinalysis?

Urine tests are typically evaluated with a reagent strip that is briefly dipped into your urine sample. The lab technician reads the colors of…

anion gap calculation high low normal
Biomarkers · 2 min read

What is Anion Gap? Normal Range+Function+Equation

The anion gap (AG) is the difference between the cations and the anions in the extracellular space that are routinely calculated in the laboratory.…

serum iron test high low reference range
Biomarkers · 1 min read

What is Serum Iron?

  Abnormal levels of iron are characteristic of many diseases, including iron-deficiency anemia and hemochromatosis. As much as 70% of iron in the body…

lymphocytes white blood cells leukocytes cbc blood
Biomarkers · 2 min read

What are Lymphocytes?

Lymphocytes represent approximately 20 – 40% of all white blood cells. The normal reference range for lymphocytes is between 1.5 – 3.6 cells/uL. There…