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Skyscape - USMLE® Question of the Week


A 23-year-old woman is being evaluated for recurrent episodes of urinary tract infection. She has had 5 episodes of cystitis and an episode of pyelonephritis over the past year. The symptoms tend to occur a few days following sexual intercourse. The patient has no other medical problems and takes no medications. Her temperature is 36.7C (98 F), blood pressure is 110/70 m Hg, respirations are 16/min, and pulse is 65/min. Abdominal and genitourinary examinations are normal. Which of the following is the most likely predisposing factor for pyelonephritis in this patient?

A Frequent voiding
B Hematogenous bacterial spread
C Suppression of endogenous flora
D Urethral colonization
E Vesicoureteral urine reflux

No items found.

iOS & Android Apps

980+ total questions*
1000+ total questions*
450 Questions, Ans and Rationales
First Aid for the USMLE Step 1
Includes Netters Anatomy Atlas
Anatomy Flash Cards
* In app purchase required


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