how it can be diagnosed??
It can be diagnosed in anyone who has suffered trauma, crush injury or prolonged immobilization, but it may also be identified at a later stage due to deteriorating kidney function.
Rhabdomyolysis
in anyone who has suffered trauma, crush injury or prolonged immobilization, but it may also be identified at a later stage due to deteriorating kidney function 
what does rhabdomyolysis refer to? It is a condition in which damaged skeletal muscle breaks down rapidly. what symptoms does it show? Muscle pains, weakness, vomiting, and confusion etc
wiki:11763169
Rhabdomyolysis [SEP] Diagnosis
A diagnosis of rhabdomyolysis may be suspected in anyone who has suffered trauma, crush injury or prolonged immobilization, but it may also be identified at a later stage due to deteriorating kidney function (abnormally raised or increasing creatinine and urea levels, falling urine output) or reddish-brown discoloration of the urine.