A34-year-old woman presents with an abrupt onset of shaking chills, moderate to high fever, and a constant ache in her lower back. she is also experiencing dysuria, urinary frequency, and a feeling of urgency. her partner states that she has been very tired the last few days and that she looked like she may have the flu. what is the most likely diagnosis?

Acute pyelonephritis

Explanation:

Acute pyelonephritis is a kidney parenchyma bacterial infection which can endanger the kidney and/or life and quite often progresses to scarring of the kidney.

The bacteria have typically risen from the lower urinary tract in these instances, but can also enter the kidney through the bloodstream.

Acute pyelonephritis symptoms usually develop quickly over a couple of hours or a day. It might cause increased fever, urinary pain and abdominal pain that exudes to the back along the side.