What Does Urine Analysis Report Regarding Ampicillin Indicate?

Hi Doctor Good day, My baby age is 4 yrs 9 month, Urine analysis report is color:straw, sediment:nil specific gravity:1025, Ph:5.0, album: (-), sugar:nil, Urobilonogen:normal, bilirubin:nil, nitrite:negative, ketone bodies:negative, bile salts:not done, pus cells 20-25 /hpf, rbc:nil, epithelial cells:3-5/hpf, calcium oxalate: epithelial, amorphous phosphate: hyaline, Uric acid(spermatozoa:nil,bacteria:nil,fungus:nil) c/s report: Ampicillin : Resistant, Nitrofurantoin: sensitive, Meorpenem : sensitive, co-trimoxazole: Resistant doxycycline : Resistant erythromycin: : sensitive, imipenem : : sensitive, cafaclor : : sensitive, gentamycin: Resistant nalidixic acid : Resistant ciprofloxacin: : sensitive, azithromycin: : sensitive, amikacin: : sensitive, ceftriaxone: Resistant Please advice me .