You arrive for your ED shift and are presented with 3 HIV-infected patients with various chief complaints. The first patient is a 28-year-old man with 1 day of right flank pain, nausea, vomiting, and hematuria. He had a kidney stone a year ago with identical pain, and a point-of-care ultrasound shows asymmetric hydronephrosis; however, a nonenhanced CT scan demonstrates hydronephrosis and hydroureter without a stone. You wonder if the CT eliminates an impacted stone or if there is another explanation.
To continue reading, please log in or purchase access.