Various acoustic parameters like isentropic compressibility (â_s), intermolecular free length (L_f) , apparent molar compressibility (ö_k), molar compressibility(w) , molar sound velocity (R) , acoustic impendence (Z) of CdBr₂ electrolyte in 5% , 10%, 15%, and 20% aqueous blood serum media at 303.15 K have been determined from ultrasonic velocity (U), density(ñ) and relative viscosity (ç_r ) studies of the solutions. These parameters are found to be related to the molar concentration of the electrolyte in solutions. The results are interpreted in terms of most probable mechanism involving structure breaking of the solute in the solvent.