Medical diagnostic kit for children ages 0-6 comprised primarily of a urine collection device and diagnostic test strips, including a wetness indicator and adhesive layer for secure placement, used to measure and/or test dehydration, glucose, urinary tract infections, protein, bilirubin, urobilinogen, red blood cells, white blood cells, nitrites, creatinine, pH, leukocyte esterase, ketones, human chorionic gonadotropin, pharmaceuticals, organic acids, sexually transmitted diseases, metabolic products of oxidant damage to tissue, DNA, RNA, antigens from bacterial, antigens from parasites, amino acids, organic acids, uric acids, and oxalic acids metabolic products of oxidant damage to tissue