Cystitis — which organism is most commonly cultured?

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Prepare for the National Association of Nutritional Professionals (NANP) Domain IV Test. Review flashcards and multiple choice questions with detailed explanations. Get exam-ready!

Multiple Choice

Cystitis — which organism is most commonly cultured?

Explanation:
Cystitis is most commonly caused by E. coli, which is the bacterium most frequently isolated from urine in uncomplicated bladder infections. This reflects its residence in the intestinal tract, allowing it to readily colonize the perineal area and ascend into the bladder. E. coli has virulence factors, such as fimbriae, that promote adhesion to urothelial cells and help establish infection. While other organisms like Staphylococcus aureus, Klebsiella pneumoniae, or Proteus mirabilis can cause UTIs, none are cultured as often as E. coli in cystitis.

Cystitis is most commonly caused by E. coli, which is the bacterium most frequently isolated from urine in uncomplicated bladder infections. This reflects its residence in the intestinal tract, allowing it to readily colonize the perineal area and ascend into the bladder. E. coli has virulence factors, such as fimbriae, that promote adhesion to urothelial cells and help establish infection. While other organisms like Staphylococcus aureus, Klebsiella pneumoniae, or Proteus mirabilis can cause UTIs, none are cultured as often as E. coli in cystitis.

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