The use of serial blood volumes and head-up tilts as important indicators of therapy in patients with bleeding from the gastrointestinal tract.
D001810:Blood Volume; D001811:Blood Volume Determination; D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage / Q000175:diagnosis*; D006801:Humans
BLOOD VOLUME/determination; GASTROINTESTINAL SYSTEM/hemorrhage; HEMORRHAGE/diagnosis