English textbooks

Many different anxiety disorders that affect children and adolescents require clinical care by a doctor or other health care professional. Listed in the directory below are some, for which we have provided a brief overview. © 2000-2024 The…

What is aortic dissection? The aorta is a large blood vessel that runs down the middle of your body. Aortic dissection is a tear in the lining of the aorta. Blood then flows into the wall of the aorta. This…

In the hospital You may need at least a month to recover from your surgery.  You will be in the hospital for about the first week. You will usually be in the intensive care unit (ICU) until your vital signs…

What is aortic stenosis in children? Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through the heart. The…

What is aortic valve regurgitation? When your aortic valve leaks, it’s called aortic valve regurgitation or aortic insufficiency. The aortic valve is one of the heart’s 4 valves. These valves help the blood flow through the heart and out to…

What is an open aortic valve replacement? An open, invasive aortic valve replacement is a surgery to replace a poorly working aortic valve with an artificial valve. The heart has 4 valves. These valves help blood flow through the heart…

What is aphasia? Aphasia is a language disorder that affects how you communicate. It’s caused by damage in the area of the brain that controls language expression and comprehension. Aphasia leaves a person unable to communicate effectively with others. A…

What is aplastic anemia in children? Aplastic anemia is a serious condition in which the bone marrow doesn’t make enough new blood cells. With fewer blood cells, a child with aplastic anemia has: Less oxygen sent to organs,…

What is apnea of prematurity? Apnea is a term that means breathing has stopped for more than 20 seconds. It can happen in full-term babies, but it’s more common in premature babies. The more premature the baby, the greater the…

Does this test have other names? Apo A-1, apolipoprotein a-1  What is this test? This test measures the amount of apolipoprotein A in your blood. It helps your healthcare provider figure out your risk for cardiovascular disease. Apolipoprotein A is…

Does this test have other names? ApoB100, Apolipoprotein B, ApoB, Apolipoprotein (B) What is this test? This test measures the amount of a certain type of protein on the surface of cholesterol called apolipoprotein B-100 (ApoB) in your blood. ApoB…

What is an appendectomy? An appendectomy is surgery to remove the appendix when it is infected. This condition is called appendicitis. Appendectomy is a common emergency surgery that cures appendicitis. The appendix is a thin pouch that is attached to…