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).
In the northeast it connects to the Atlantic Ocean through the Hudson Strait, and in the north, it connects with the Arctic Ocean through the Foxe Basin. There are scattered islands in Hudson Bay, mostly in the southeast, and also in James Bay, a smaller part of the larger bay. The islands within James Bay, as well as the Belcher Islands in Hudson Bay, are all considered a part of Canada's Nunavut Territory.