Urinary tract infection

Question 1

definition uncomplicated uti 5

Answer 1

healthy adult woman aged over 12 less than 65
non pregnant
no rigors, nausea vomiting flank pain

Question 2

symptoms being predictive

Answer 2

80% accurate
Bent Jama
frequency
sp pain
dysuria
haematuria with no vaginal discharge

Question 3

EAU definition of diagnosis uti

Answer 3

colony count more than 10 to 3 is diagnositic of uncomplicated cystitis in women

Question 4

diagnosis cfu 10 to 5

Answer 4

MSU in women

10 to 4 for men or straight catheter urine in women

Question 5

10 to 5 in hpf

Answer 5

10 to 5 or 100,000 colony counts cfu per ml is 5 bacteria per HPF

Question 6

how to culture urine

split agar plate gram positive and negative

Answer 6

split agar plate
half blood agar to grow gram +ve
half eosin methylene blue gram -ve
0.1mls onto each half plate
overnight incubation
count cfu per mls urin

Question 7

catheter associated uti cf

Answer 7

cfu 10 to 3 of one or more bacterial specieis in single catheter specimen urine or catheter removed in last 48 hours

Question 8

cochrane review of studies efficacy antibiotics for uti

Answer 8

trimethoprim as effective as quinolones
beta lactams as effective as trime
nitro similar trimethoprim
no differences between classes abx
2010

Question 9

CAUTI daily risk UTI

risk at 1 week

Answer 9

5-7%

25%

Question 10

routes of infection with catheter

Answer 10

intraluminal 34% gram negative
extraluminal
staph enterococcus
66%

Question 11

when would do repeat culture after pyelonephritis

Answer 11

not routine

only in pregnant women ensure clearance achieved

Question 12

sources of perinephric abscess 3

Answer 12

rupture of cortical abscess
failure to drain pyonephrosis
haematogenous spread from distant site

Question 13

examination of perinephric abscess 2

Answer 13

flank mass erythema

psoas irriation on hip extension