Rhabdomyolysis
Hx
Muscle pain
Red/brown/cola urine
Pathology
Muscle necrosis
Release of muscle contents into blood stream
Can cause renal injury
CK usually 5 x normal
Urine dipstick pos for haem (as myoglobin released crossreacts)
Urine micro neg for blood
Etiology
viral myositis
crush injury
severe electrolyte abnormalities (hypernatremia, hypophosphatemia)
hypotension
disseminated intravascular coagulation
toxins (drugs, venom)
metabolic disorders of muscles
prolonged seizures