This test measures the amount of vitamin B12 in your child’s blood. The body needs vitamin B12 to make blood cells. Nerve cells and the brain need vitamin B12 to work normally as well. Your child can get vitamin B12 from food and supplements.
This test is done to see if your child’s body is absorbing enough vitamin B12. If your child has anemia, it may be done to see if the anemia is caused by a lack of vitamin B12.
Your child's healthcare provider makes a tiny cut in a baby's heel to get a small amount of blood to test.
A small amount of blood is taken from a finger with a fingerstick or from a vein in your child’s arm with a needle. The blood is collected in tubes and sent to a lab.
Ask your healthcare provider when and how you will get the result of your child’s test.
Some of the reasons your child’s vitamin B12 level may be lower than normal are:
A low blood level of vitamin B12 is called vitamin B12 deficiency.
Some of the reasons your child’s vitamin B12 level may be higher than normal are:
Test results are only one part of a larger picture that takes into account your child’s medical history and current health. Sometimes a test needs to be repeated to check the first result. Talk to your healthcare provider about the result and ask questions, such as: