a medical term that means decrease in blood pressure is
Blood pressure Sometimes the arterial pressure drops significantly when a patient stands up from sitting. This is known as orthostatic hypotension (postural hypotension); gravity reduces the rate of blood return from the body veins below the heart back to the heart, thus reducing stroke volume and cardiac output.[citation needed]
Bull riding The flank strap
Bilirubin Hyperbilirubinemia is a higher-than-normal level of bilirubin in the blood. For adults, this is any level above 170 μmol/l and for newborns 340 µmol/l and critical hyperbilirubinemia 425 µmol/l.
Vein Veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.