Medical definitions - T
A B C D E F G H I J K L M N O P Q R S T U V W X Y ZTPN – see also lipids; total parenteral nutrition; fluid high in calories administered via IV for nutrition/nourishment.
TR - a measure of pulmonary hypertension.
Tracheal occlusion - a procedure that, like in-utero repair, involves an operation on the mother during pregnancy. Rather than correcting the diaphragm, this procedure clamps off the baby's trachea, in the hopes of causing the lungs to grow and push the organs back into the abdominal cavity.
Tracheostomy – also called a trach; a 2- to 3-inch metal or plastic tube that keeps the stoma and trachea open.
Trisomy 13 – also known as Patau syndrome; the condition of having three copies of chromosome 13 that results in a syndrome characterized by mental retardation and defects to the central nervous system and heart.
Trisomy 18 – also known as Edwards syndrome; there are three instead of the normal two chromosomes #18. Children with this condition have multiple malformations and mental retardation due to the extra chromosome #18. The children characteristically have low birth weight, small head (microcephaly), small jaw (micrognathia), malformations of the heart and kidneys, clenched fists with abnormal finger positioning, and malformed feet.