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  • Blood for Teens


    Learn what blood is, what it does, what the different kinds of blood cells are, and how blood travels through the body.

  • Blood Test: Complete Blood Count for Parents


    The complete blood count (CBC) is the most common blood test. It analyzes red blood cells, white blood cells, and platelets.

  • Donating Blood for Teens


    There's a 97% chance that someone you know will need a blood transfusion. Blood donors — especially donors with certain blood types — are always in demand. Find out what's involved in this article for teens.

  • Blood Transfusions for Parents


    A blood transfusion is a safe and relatively simple medical procedure that replaces blood lost during surgery or because of an injury or illness.

  • Blood Transfusions for Teens


    Millions of people a year get blood transfusions in the United States. This article explains why people need them and who donates the blood used.

  • What's Blood? for Kids


    Blood swirls through your veins and arteries, but what is it really? Find out about blood in this article for kids.

  • Blood Types for Teens


    Learn why blood is grouped into types, what the types and blood components are, and why blood transfusions matter.

  • Blood Culture for Parents


    A blood culture is a test that looks for germs (such as bacteria or fungi) in the blood.

  • Lipase Blood Test for Parents


    Doctors sometimes order a lipase test if a child has signs of a pancreas problem, like belly pain, nausea, or vomiting.

  • Prolactin Blood Test for Parents


    A prolactin test helps doctors diagnose problems in the pituitary gland and other conditions, like irregular periods.