Search results : allergy-testing

Blood Test: von Willebrand Factor (vWF) Activity - Ristocetin Cofactor for Parents

A von Willebrand factor (vWF) activity - ristocetin cofactor test lets doctors evaluate the functioning of a protein that helps blood to clot.

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.

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.

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: Immunoglobulin A (IgA) for Parents

Checking IgA levels can help doctors diagnose problems with the immune system, intestines, and kidneys. It's also used to check autoimmune conditions, such as rheumatoid arthritis, lupus, and celiac disease.

Blood Test: Immunoglobulin E (IgE) for Parents

The immunoglobulin E (IgE) blood test is often done as part of an initial screen for allergies. High IgE levels also may indicate a parasitic infection.

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.