History: A 25-year-old pregnant woman comes to the ED with s…

History: A 25-year-old pregnant woman comes to the ED with symptoms of lower back pain, urinary frequency, and a burning sensation when voiding.  Her pregnancy has been normal up to this point.  She is given a sterile container and asked to collect a mid-stream clean catch urine specimen.  Routine urinalysis results are as follows. Exam 1(2).jpg What is the most probable diagnosis for this patient?