Blood count tests describe the cells in your blood: red cells that carry oxygen, white cells that fight infection and platelets that clot. A complete blood count is the most ordered test in medicine because it screens for anemia, infection and many other conditions in one draw, and anemia profiles add the iron, B12 and folate context that explains a low red count. Athletes and people at altitude use these to track hemoglobin and hematocrit; everyone else uses them as a yearly baseline.
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A complete blood count without the white-cell differential: white and red blood cell counts, hemoglobin, hematocrit, red-cell indices (MCV, MCH, MCHC, RDW),…
Evaluates red blood cells, white blood cells (with differential), hemoglobin, hematocrit, and platelets to assess anemia, infection, inflammation, immune…
Measures functional fibrinogen activity in the coagulation cascade. Used to assess bleeding risk, monitor anticoagulation therapy, and evaluate liver function…
Measures folate levels in red blood cells, providing a more stable indicator of long-term folate status than serum levels. Essential for DNA synthesis, red…
Measures serum iron levels to assess iron status. Used in conjunction with TIBC and ferritin to diagnose iron deficiency anemia, iron overload, and related…
Measures the time for blood to clot via the extrinsic pathway. INR standardizes results across laboratories and is essential for monitoring warfarin…
Measures vitamin B12 (cobalamin) levels to assess nutritional status. Essential for DNA synthesis, red blood cell formation, and neurological function.…
Measures phylloquinone (vitamin K1) levels to assess vitamin K status. Essential for blood clotting, bone metabolism, and calcium regulation. Deficiency can…
