English textbooks

What is an atrial septal defect in children? The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in this wall. ASD is…

What is an atrial septal defect transcatheter closure in children? Atrial septal defect (ASD) transcatheter closure is a procedure to fix a hole in the atrial septum. The atrial septum is a wall that separates the right and left upper…

What is an atrioventricular canal defect in a child? An atrioventricular (AV) canal defect is a congenital heart defect. This means that your child is born with it. AV canal defect is a large hole in the center of the heart.…

What is ADHD in children? Attention-deficit/hyperactivity disorder (ADHD) is a brain-based, or neurodevelopmental, disorder. It’s also called attention deficit disorder. It’s often first diagnosed in childhood. There are 3 types: ADHD, combined. This is the most common type.…

What is audiology? Audiology is a medical specialty. It focuses on hearing and balance problems. It also helps with fitting and using hearing aids and other hearing devices. The provider who practices audiology is called an audiologist. This is a…

What is autism spectrum disorder in children? Autism spectrum disorder (ASD) is a problem that affects a child’s nervous system and growth and development. It often shows up during a child’s first 3 years of life. Some children with ASD…

A diagnosis of autism spectrum disorder (ASD) is hard for both your child and you. Autism symptoms can vary widely. Odd or incorrect behaviors, problems with communication, and repeated routines and rituals are all linked to ASD. This can make life…

Autism spectrum disorder (ASD) is a developmental disorder. It affects how children interact and communicate with others. The disorder is called a spectrum disorder because of the wide range (spectrum) of severity. Some children on the spectrum may be able to talk. Eventually…

When someone’s heart stops working, it’s known as sudden cardiac arrest. Sudden cardiac arrest happens to many thousands of people each year. It causes blood to stop flowing to the brain and other organs. Without rapid treatment, a person will die…

What is an autopsy? An autopsy is a detailed medical exam of a deceased person’s body. Your healthcare provider will tell you who to contact if you want to donate your loved one’s organs to science. They will also discuss with…

Genes are the blueprints for making proteins. Our bodies need proteins to develop and work correctly. Most genes come in pairs. One is inherited from the mother and the other from the father. Genes inherited from our biological parents are expressed…

When a disease or condition runs in families, it is called an inherited disease. You inherit a disease through your genes. Genes are the tiny blueprints your body uses for making proteins. Proteins are substances your body needs to develop…