ANSWER


5) The formed element pictured is a granular cast. Granular casts are common in patients with acute poststreptococcal glomerulonephritis because of decreased urine flow. First, red blood cell casts form from the obstruction of capillaries and tubules due to inflammation. The decreased urine output common in patients with acute poststreptococcal glomerulonephritis causes these casts to remain in the nephron for a longer time. This gives the red blood cell casts an extended period of time to disintegrate into granular casts.

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