Hypoglycemia is a potentially dangerous condition in which blood sugar levels drop too fast.
There is no threshold at which blood pressure suddenly becomes a threat.
It left a small graze through which blood bulged into a blob that hung from my broken skin.
Doctors diagnosed deep-vein thrombosis, a potentially serious condition in which blood clots form in the leg or pelvic veins.
British patients with the rare inherited condition in which blood does not clot normally were not told of the risks.
In a vast majority of cases in which blood tests show that someone has been infected, no symptoms develop.
From Plato onwards, writers have fantasised about a universal brotherhood in which blood allegiances are replaced by infinite goodwill.
Blood vessel, a vessel in the human or animal body in which blood circulates.
The envoy has scorned the idea that leftwing anarchists should elect to act in support of a fascist coup in which blood had been shed and crimes enacted.
Occurrence of the most common type of stroke, for example, in which blood flow to the brain is cut off, peaked in the morning.
I arrived at the E.R. with a 103.8 fever and unbearable chest pain, which blood tests eventually showed to be strep pneumonia.
