Medical Tests & Exams

• How Does a Leg Length X-Ray Work?

  Doctors use leg length X-rays to measure the legs and look for a leg length discrepancy (when one leg is shorter than the other).

• IgA (Immunoglobulin A) Blood Test

  Doctors usually order an IgA (immunoglobulin A) blood test to see why some infections keep coming back.

• IGF Binding Protein-3 (IGFBP-3) Blood Test

  IGF binding protein-3 (IGFBP-3) tests can help show whether the body is making a normal amount of human growth hormone.

• Insulin Blood Test

  Insulin blood tests measure a person’s level of insulin to help find the cause of low blood sugar and to check for other problems.

• Lactate Dehydrogenase (LDH) Blood Test

  Lactate dehydrogenase (LDH) blood tests check a person’s level of LDH enzyme and are often used to look for tissue damage.

• Lead Blood Test

  A lead blood test checks for lead, a metal that can harm kids’ health. Learn when it’s given and what the results mean.

• Lipase Blood Test

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

• Magnesium Blood Test

  A magnesium test checks the level of a mineral called magnesium in the blood. Learn what the test results could mean.

• Magnetic Resonance Imaging (MRI)

  Magnetic resonance imaging (MRI) is a safe and painless test that uses a magnetic field and radio waves to produce detailed pictures of the body’s organs and structures.

• Magnetic Resonance Imaging (MRI): Brain

  A brain MRI, a safe and painless test that produces detailed images of the brain and the brain stem, can help detect cysts, tumors, bleeding, and other problems.