A40-year-old woman presents to the emergency room with flank pain and fever of 102°f. upon interview of the patient, she also noted that her urine output has decreased over the last few days. on further inquiry, the patient stated that she has been trying to lose weight by increasing her protein in her diet, exercising and decreasing her normal fluid intake. on urinalysis, red blood cells are noted. what is the most likely diagnosis?

I believe that she has Oliguria. It is the medical term for a decreased output of urine. Aside from that, there are many potential causes and the two that we see her are dehydration and a urinary tract obstruction. She is decreasing her normal fluid intake. Your body can't replace the fluids that you're losing. When this happens your kidneys retain as much fluid as they can. As for urinary tract obstruction, she has increased her protein intake. A high-protein diet can inhibit your body from eliminating all the waste products of protein metabolism. This can cause a blockage in your kidneys. This explains why she has flank pain and a high fever. 

It settles nerves, reduces the tension.