High MCV and Low B12 or Folate: Macrocytic Anemia Pattern and Meaning
High MCV with low vitamin B12 or low folate usually points to a macrocytic anemia pattern, where red blood cells are larger than expected...
High Mean Corpuscular Hemoglobin (MCH) Test: Causes, Macrocytic Anemia, and Meaning
Mean corpuscular hemoglobin, or MCH, is one of the red blood cell numbers reported on a complete blood count. It estimates how much hemoglobin...
High Mean Corpuscular Hemoglobin Concentration (MCHC) Test: Causes, Spherocytosis, and Meaning
A high mean corpuscular hemoglobin concentration, or high MCHC, means the hemoglobin inside your red blood cells looks more concentrated than expected. MCHC is...
High Mean Corpuscular Volume (MCV) Test: Causes, Macrocytic Anemia, B12, Folate, and Meaning
Mean corpuscular volume, usually shortened to MCV, is the average size of your red blood cells. A high MCV means those cells are larger...
High Mean Platelet Volume (MPV) Test: Causes, Platelet Activation, and Meaning
Mean platelet volume, or MPV, is a platelet size marker reported on many complete blood count results. A high MPV means your platelets are...
High Monocyte Count Blood Test: Causes, Infection, Inflammation, and Meaning
A high monocyte count means one type of white blood cell is above the expected range. Monocytes help your immune system clean up infection,...
High Neutrophil Count Blood Test: Causes, Infection, Inflammation, and Meaning
A high neutrophil count usually means your immune system is reacting to something recent or ongoing. Neutrophils are the most common white blood cells...
High Platelet Count Blood Test: Causes, Thrombocytosis, Clot Risk, and Meaning
A high platelet count means your blood test found more platelets than expected in a measured amount of blood. Platelets are small blood cells...
High Platelet Distribution Width (PDW) Test: Causes, Platelet Activation, and Meaning
Platelet distribution width, or PDW, is a platelet size-variation marker that may appear on a complete blood count. A high PDW means the platelets...
High Plateletcrit (PCT) Blood Test: Causes, Platelet Mass, Clot Risk, and Meaning
Plateletcrit, often shortened to PCT on some complete blood count reports, estimates the total volume of platelets in your blood. A high plateletcrit usually...
High Platelets and Low Ferritin: Iron Deficiency, Inflammation, and Meaning
High platelets and low ferritin most often point toward iron deficiency with a reactive rise in platelets. Ferritin reflects stored iron, while platelets are...
High Red Blood Cell (RBC) Count Test: Causes, Polycythemia, Dehydration, and Meaning
A high red blood cell count means your blood sample contains more red blood cells than expected for your age, sex, hormone status, altitude,...
High Red Cell Distribution Width (RDW) Test: Causes, Anemia, Iron Deficiency, and Meaning
A high red cell distribution width, or high RDW, means your red blood cells vary more in size than expected. This pattern is called...
High Reticulocyte Count Test: Causes, Anemia Recovery, Blood Loss, and Meaning
A high reticulocyte count usually means your bone marrow is releasing extra young red blood cells into the bloodstream. That can be a healthy...
High White Blood Cell (WBC) Count Test: Causes, Infection, Inflammation, and Meaning
A high white blood cell count means the immune cell level in your blood is above the reference range used by the laboratory. White...
Immature Granulocytes (IG) Blood Test: High IG, Normal Range, Infection, Inflammation, and Meaning
Immature granulocytes are young white blood cells that usually stay in the bone marrow until they mature. When they appear in the bloodstream, the...
Immature Reticulocyte Fraction (IRF) Normal Range: Reference Values and Meaning
Immature reticulocyte fraction, often shortened to IRF, is a blood test marker that shows how many of your reticulocytes are very young. Reticulocytes are...
Low Absolute Neutrophil Count (ANC): Causes, Infection Risk, and Meaning
A low absolute neutrophil count means the blood has fewer neutrophils than expected. Neutrophils are white blood cells that respond quickly to bacteria and...
Low Basophil Count Blood Test: Causes and Meaning
A low basophil count on a blood test usually has limited meaning when the rest of the complete blood count is normal. Basophils are...
Low Eosinophil Count Blood Test: Causes and Meaning
A low eosinophil count usually means the number of eosinophils in the bloodstream is very small at the time of testing. Eosinophils are a...