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  • COVID-19 Tests: Which One Is Best? for Parents


    Two kinds of tests can see if someone is infected with COVID-19: molecular tests (such as PCR) and antigen tests. Find out how they differ and which might be best for you or your family.

  • Blood Test: von Willebrand Factor (vWF) Antigen for Parents


    Doctors order the vWF antigen test to help diagnose or monitor the treatment of von Willebrand disease.

  • COVID-19: Getting Tested for Parents


    As coronavirus spreads in communities, parents might wonder if their family should get tested. Here's how health care providers test for it.

  • Stool Test: Giardia for Parents


    This test may be done if a child has watery diarrhea, belly pain, lots of intestinal gas, appetite loss, and nausea or vomiting.

  • Blood Test: Estradiol for Parents


    Estradiol is the most important form of the hormone estrogen. Doctors may order an estradiol test if puberty seems to be starting earlier or later than expected, or to evaluate menstrual problems.

  • Blood Test: Testosterone for Parents


    A testosterone blood test may be done if a child seems to be entering puberty earlier or later than expected, or to check for damage or disease of the testes or ovaries, adrenal glands, or pituitary glands.

  • Prenatal Tests: Third Trimester for Parents


    Find out what tests may be offered to you during weeks 27 through 40 of pregnancy.

  • Test Anxiety for Teens


    Everyone feels a little nervous and stressed before a test. For some people, this normal anxiety can be intense.

  • Test-Taking Tips for Teens


    Do you sweat, chew your pencil, and feel butterflies in your stomach as your teacher hands out a test? Study these test-taking tips!

  • Blood Test: Erythrocyte Sedimentation Rate (ESR) for Parents


    An erythrocyte sedimentation rate test (ESR) detects inflammation that may be caused by infection and some autoimmune diseases.