If the blood types are not compatible, each will react with the other and cause clumping or clotting. This will cause death in the tissues that are fed by the blood vessels including the brain. A stroke can be caused by a clot.
acute hemolytic rection
A potentially serious consequence of profuse sweating is called dehydration.
that will lead to a serious disease and doctors shouldn't allow that to happen
Nervous system is well protected from infection. But when infected, patient is serious and if not properly treated, he can die.
Genetic testing is used most often for newborn screening. Every year, millions of newborn babies have their blood samples tested for potentially serious genetic diseases.
Metastasis may be the word you are looking for.
Acute immune hemolytic reaction
Acute hemolysis is a general term meaning sudden destruction of red blood cells. This destruction can occur with incompatible donor and recipient blood, and it may be fatal.
Although the handwriting of physicians is the butt of many jokes, it is a potentially serious hazard to patients (found in Law, Liability, and Ethics) page190
Aortic enlargement. This is the most serious potential complication of Marfan syndrome.
Venous thrombosis. A potentially serious complication, thrombosis refers to the formation of blood clots in the veins. Severe inflammation. Pain after the procedure lasting several hours or days.
peritonitis and death
death
An extremely serious complication of measles infection is swelling of the brain.
A potentially serious consequence of profuse sweating is called dehydration.
concussion
Eclampsia
pulmonary edema