Table 4.

Characteristics of urine and plasma in the different conditions that may cause red discoloration of the urinea

CharacteristicRhabdomyolysisHemolysisHematuria
aCK, creatine kinase.
Red discoloration plasma-+-
Positive benzidine dipstick+++
Presence of erythrocytes by urine microscopy--+
Elevated CK concentration in the blood+--