[Answered]: History: A 45-year-old man comes to his physician…

History: A 45-year-old man comes to his physician after spending a second sleepless night with excruciating lower abdominal pain. The pain seemed to come in waves and was unrelieved by aspirin, tylenol, a six-pack of beer, or lying or standing in any position. He had not experienced any similar pain before. On physical examination there are no abnormal findings. Macroscopic Urinalysis: Characteristic Result Color Dark Yellow Appearance Cloudy Leukocyte Esterase Neg Nitrite Neg pH 6.0 Protein Neg Blood 3+ Specific Gravity 1.015 Ketones Neg Glucose Neg Bilirubin Neg Microscopic Urinalysis: Characteristic Result WBC/hpf 2-5/hpf RBC/hpf >100/hpf Casts None Other Occasional squamous epithelial cells Questions: What abnormal findings are present? What is the differential diagnosis? What diagnosis do you suspect? What other studies could be done?