A new report shows the brains of autistic children, who suffer from the disorder tied to a combination of contributing factors from genes to the environment, have differences in regions that develop during the mother's second trimester of pregnancy.
Complement component 4 is a blood test that measures the activity of a certain protein that is part of the complement system. The complement system is a group of proteins that move freely through your bloodstream.
What Is a Chloride Blood Test? Chloride is an electrolyte that helps keep a proper fluid and acid-base balance in your body. The chloride blood test, or serum chloride level, is often a part of a comprehensive metabolic panel or a basic metabolic panel. A metabolic panel also measures your levels of other electrolytes, including carbon dioxide, potassium, and sodium.