A substance that is a possible carcinogen (cancer-causing agent) used in the production of polymers such as polytetrafluoroethylene.
The US government in 2000 classified tetrafluoroethylene as “reasonably anticipated to be a human carcinogen.” In laboratory animal studies of tetrafluoroethylene, cancer was observed in multiple organs of multiple species following long-term inhalation exposures.
- Tetralogy of Fallot
Ventricular septal defect (VSD)A hole between the two bottom chambers, the ventricles, of the heart that permits oxygen-poor blood from the right ventricle to mix with oxygen-rich blood from the left ventricle. Pulmonary stenosisNarrowing of the outlet to the pulmonary artery area with an abnormal pulmonary valve impeding blood flow from the right ventricle to […]
A sequence of 4 base pairs. (Bases are the building blocks of DNA.) Expansion of a tetranucleotide repeat (CCTG) in the ZNF9 gene causes type 2 myotonic dystrophy.
A peptide consisting of four amino acids.
Adult diphtheria and tetanus toxoids. See Td immunization.
Traditional Chinese medicine.