Great choice – when in doubt, spin that urine. Below is an image of the urine sediment
(Left: light microscopy; Right: polarized sample)

Our data so far does not suggest a nephritic syndrome, let’s hold off on checking the complement levels for now. Pick again!

Good choice, the test is negative.

While age-appropriate cancer screenings are important, the likelihood of a colonic mass explaining our current presentation is a bit lower than other explanations. Pick again!

In this patient with nephrotic range proteinuria, kidney biopsy may provide additional information. But there’s a cheaper, less invasive test that might help us first…

Hm, not the best test here. This test might be ordered in patients to look for acute interstitial nephritis, but it’s not a great test there either. Try again!