A Coombs test (also known as Coombs' test, antiglobulin test or AGT) is either of two clinical blood tests used in immunohematology and immunology.
Hudson Bay (Inuktitut: Kangiqsualuk ilua, French: baie d'Hudson) (sometimes called Hudson's Bay, usually historically) is a large body of saltwater in northeastern Canada with a surface area of 1,230,000 square kilometres (470,000 sq mi).
The country also has the worlds 2nd largest bay, Hudson Bay, which is a large body of saltwater in the north-eastern part of Canada. Hudson Bay drains a huge area of 1,560,400 sq. miles (4,041,400 sq. km), which includes parts of Alberta, Saskatchewan, Quebec, Ontario, and most of Manitoba.