In a direct Coombs' test a special antibody is added to a sample of blood. This test checks whether there are antibodies already bound to the surface of the red blood cell. If the test is positive the antibodies that are added bind to the antibodies on the surface of the cell.
The River Hull is a navigable river in the East Riding of Yorkshire in the north of England. It rises from a series of springs to the west of Driffield, and enters the Humber estuary at Kingston upon Hull.
Kingston upon Hull. Kingston upon Hull (/ËkÉªÅstÉn ÉpÉn ËhÊl/ KING-stÉn É-pon HUL, local /ËhÊl/), usually abbreviated to Hull, is a city and unitary authority in the East Riding of Yorkshire, England. It lies upon the River Hull at its confluence with the Humber estuary, 25 miles (40 km) inland from the North Sea, with a population of 259,000 (mid-2015 est.).