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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
With regards to acute pyelonephritis in pregnancy all of the following are true except:
assistant
The correct answer is  Pyelonephritis in Pregnancy:
Etiology:

Incidence in pregnancy is 1-3%
More common in primigravida and young females
Usually occurs in the second trimester after 16 weeks (>50%) but may occur in 1st and 3rd as well
Generally bilateral, if unilateral it is more common on right side (in more than half of the cases)
Most common organism responsible E. coli (70%), Klebsiella (10%).

Complications