Urinary Tract Infections Flashcards
(49 cards)
What is the most common infectious disease in women?
Urinary tract infection (UTI)
What percentage of hospital-acquired infections are UTIs?
0.4
What are the three criteria to define a UTI?
Urinary symptoms, bacteriuria, and leukocyturia
How is significant bacteriuria defined?
> 1 x 10^5 CFU/mL
Which part of the urinary tract does pyelonephritis affect?
Renal parenchyma
What is the most common UTI classification by location?
Lower (bladder, urethra) and Upper (kidney)
What defines recurrent UTIs?
≥3 UTIs/year or ≥2 in 6 months
Who is at higher risk of complicated UTIs?
Men, pregnant women, menopausal women, anatomical abnormalities
What is asymptomatic bacteriuria?
Bacterial growth without symptoms
When should asymptomatic bacteriuria be treated?
Only in pregnancy
What is the main transmission route of UTIs?
Ascending route from urethra
Why are women more prone to UTIs?
Shorter urethra and proximity to anus
What factors prevent bacterial adhesion in the urinary tract?
Mucopolysaccharides and prostatic secretions
Which sexual behavior is a major risk factor for UTIs in women?
Sexual intercourse
What conditions favor bacterial growth in urine?
Diabetes and glucose in urine
What pathogen is responsible for 80% of UTIs?
Escherichia coli
What pathogens are linked to STDs and UTIs?
Chlamydia and Mycoplasma
What is the first-level diagnostic test for UTIs?
Urine test and culture
What imaging is used for complicated UTIs?
CT-IVU, ultrasound, or MRI
When is dynamic renal scintigraphy used?
In complicated or recurrent infections
What must be done before prescribing antibiotics for UTIs?
Antibiogram
Which type of cystitis has no identifiable pathogen?
Abacterial cystitis
What is a typical treatment for acute cystitis in women?
Single dose of fosfomycin
What bacteria are most associated with pyelonephritis?
E. coli, Proteus, Klebsiella