04 - LUTD - bacterial UTIs

Question 1

1. what bacteria accounts for more than half of UTIs in dogs and cats?
2. what other two are common in dogs?

Answer 1

1. E. Coli
2. staph and proteus

Question 2

normal cats younger than 10 rarely get UTI

not unusual in normal dogs though

Question 3

3 metabolic conditions that predispose for UTI?

Answer 3

DM, hyperthyroidism, hyperadrenocorticism

Question 4

check for functional (incomplete voiding) and antaomical defects that could be causing

ectopic ureters, stricture, etc.

Question 5

Cx?

Answer 5

urinating in unusual locations, hematuria, stranguria, pollakuria, dysuria, licking

Question 6

(dx)

1. on urinalysis?
2. what can cause alkaline urine?
3. what is the gold standard to prove UTI exists?
4. cystocentesis will grow fewere bacteria (cause less contamination), how much much exist to confirm UTI?
5. how good are voided samples?

Answer 6

1. pyuria and bacteria in sediment

(hematuria and proteinuria also common - but not specific for UTI)

2. presence of urease bacterial UTI
3. quantitiatve urine culture
4. > 100 CFU/mL
5. not great - can have lots of growth in patient without UTI

Question 7

(tx)

1. abx should be based on culture and susc
2. how long is tx for uncomplicated UTI?
3. successful tx = ?

Answer 7

2. 2 to 3 weeks
3. sterile urine culture 3 to 5 days after stopping treatment

(do not rely on resolutino of Cx!)

Question 8

(recurrent UTI)

1. positive urine culture foloowing course of tx
2. infection could be a new bacteria, or the old one that didn’t get eradicated (hard to get to, resistant)
3. how to tx same bacteria?

Answer 8

3. tx for 6-8 wks, may need different class of antimicrobial with greater tissue penetration