UTI

Question 1

What to see in UTI

Answer 1

dysuria, frequency, WBC but NOT WBC casts in urine

Question 2

UTI pathologic always

Answer 2

Males: infants with congenital defects, vesicoureteral reflux. Elderly with enlarged prostate.

Question 3

Pyelonephritis

Answer 3

Fever,chills, flank pain, CVA tenderness, hematuria AND WBC casts

Question 4

More common in

Answer 4

Women (shorter urethra colonized by fecal flora)

Other predisposing factors: obstruction, kidney surgery, cath, GU malformation, DM, and pregnancy

Question 5

Dx markers

Answer 5

positive leukoesterase = bacterial UTI
positive nitrate test = gram negative bacterial UTI
positive urease test = proteus, klebisella
negative urease test = e coli, enterococcus

Question 6

E coli

Answer 6

1st leading cause of UTI, shows green metallic sheen on EMB agar

Question 7

S. sapophyticus

Answer 7

2nd leading cause of community acquired UTI in sexually active women

Question 8

Klebsiella pneumo

Answer 8

3rd leading cause of UTI

Large mucoid capsule and viscous colonies

Question 9

Serratia mascescens

Answer 9

Some stains produce red pigment

Often nosocomial and drug resistant

Question 10

Enterobacter cloace

Answer 10

Often nosocoial and drug resistant

Question 11

Proteus mirabilis

Answer 11

Motility causes swarming on agar
Produces urease
Associated with struvite stones

Question 12

Pseumonas

Answer 12

Blue green pigment and fruity ordor

Usually nosocomial and drug resistant

Question 13

List

Answer 13

Ecoli (1st)
Staphy saprophyticus (2nd)
Klebisella (3rd)
Serratia
Enterobacter cloacae
Proteus
Pseumonas