English textbooks

What is allergic rhinitis in children? Rhinitis is a reaction that happens in the eyes, nose, and throat. It occurs when allergens in the air set off the release of histamine and other chemicals in the body. Normally allergens are…

Allergies are among the most common heath problems. Click on the links below to learn more about this topic. © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional…

What are allergies in children? Allergies are problems of the immune system. Most allergic reactions happen when the immune system reacts to a “false alarm.” Normally, the human body defends itself against harmful things, such as viruses or bacteria. But…

What are allergies? Allergies are due to a problem with the body’s immune system. Most allergic reactions happen when the immune system reacts to a false alarm. Normally the immune system attacks harmful things, such as viruses or bacteria. But…

What is alpha thalassemia in children? Alpha thalassemia is an inherited blood disorder. This means it is passed down through the parent’s genes. It may cause anemia in their children. Anemia is low numbers of red blood cells or low…

Does this test have other names? Alpha-1-antiprotease deficiency, alpha-1-antiproteinase inhibitor deficiency, AAT deficiency, alpha-1-antitrypsin (A-1AT) deficiency  What is this test? This is a type of blood test. It helps find out if you have a genetic disorder called alpha-1 antitrypsin deficiency.…

What is an alpha-fetoprotein (AFP) screening test? Alpha-fetoprotein screening is a blood test that checks the level of alpha-fetoprotein in the mother’s blood during pregnancy. AFP is a protein normally made by the baby’s liver. It is found in the…

Does this test have other names? Amniotic fluid alpha-fetoprotein, AFAFP test What is this test? This test checks a sample of amniotic fluid for a substance called alpha-fetoprotein. It is made by the developing baby and passes into the amniotic…

Does this test have other names? msAFP screen What is this test? If you are pregnant, this test looks for a fetal substance called alpha-fetoprotein (AFP) in your blood. AFP is a protein made by your fetus’ liver. The protein…

Does this test have other names? AFP What is this test? This is a blood test to look for alpha-fetoprotein (AFP) in your blood. AFP is normally made by a fetus’s liver and yolk sac. It’s the main protein during…

What is Alzheimer disease? Alzheimer disease is a disease that affects the brain and nervous system. It happens when nerve cells in the brain die. The disease gets worse over time. It is a type of dementia. Alzheimer disease often…

What is amenorrhea? Amenorrhea is when you don’t have your period for more than 3 cycles. There are 2 types: Primary amenorrhea.  Your period never started in puberty. Secondary amenorrhea.  This type often occurs later…