My 4yr old daughter had her gallbladder removed three days ago and is now complaining of right side and lower stomach pain. They did a urine test. Should I be worry about blood in her urine? Color, UA Lt Yellow Appearance,UR Clear Specific Gravity,UA 1.021 Leuk Esterase,UA 3+ Nitrite,UA NEG pH,UA 6.0 Protein,UA NEG mg/dL Glucose,UA NORM mg/dL Ketones, UA NEG Blood,UA 1+ RBC,UA 2 /hpf WBC,UA 18 /hpf Mucus,UA Present