The occurrence of MYOGLOBIN in the URINE. This is the oxygen-binding pigment in muscle and mild myoglobinuria may occur during exercise. Severe myoglobinuria will result from serious injuries, particularly crushing injuries, to muscles.
(myohaemoglobinuria) n. the presence in the urine of the pigment myoglobin.
A rare genetic disorder characterized by muscle stiffness and painful cramps that increase during exertion and afterwards. The cause is a deficiency of an enzyme in muscle cells that stimulates breakdown of the carbohydrate glycogen into the simple sugar glucose. The result is a build-up of glycogen and low levels of glucose in the muscles. Damage to the muscles occurs, causing myoglobinuria (muscle-cell pigment in the urine), which may lead to kidney failure. There is no treatment, but symptoms may be relieved by eating glucose or fructose before exercise.... mcardle’s disease
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