Got a blood test back and not sure what the number means? Pick a test to see whether your value falls in the typical range and what a low, normal, or high result may indicate. Everything runs in your browser — nothing you type is stored. These are educational explainers, not a diagnosis.
LDL carries cholesterol to your tissues; high levels can build up in artery walls, which is why it's called 'bad' cholesterol.
HDL helps carry cholesterol away from arteries back to the liver, which is why higher levels are generally protective.
Triglycerides are the most common type of fat in the blood; high levels are associated with heart disease and, when very high, with pancreatitis.
Ferritin reflects how much iron your body has in storage.
Hemoglobin is the iron-containing protein inside red blood cells that carries oxygen around your body.
Hematocrit is the percentage of your blood volume made up of red blood cells.
MCV is the average size of your red blood cells.
MCH is the average amount of hemoglobin packed inside each red blood cell.