05.20 - UTIs (Brint) - PP Flashcards Preview

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Flashcards in 05.20 - UTIs (Brint) - PP Deck (35):
1

2 frequent causes of hematogenous UTI

Bacterial endocarditis, Indwelling venous catheters

1

How can you tell if kidney is involved

WBC Casts

2

Blood culture when pyelonephritis

Will be positive

3

How does preganancy affect rate of pyelonephritis

Greatly increases

3

Fever, Chills, Flank pain, CVAT =

Upper Tract Infection

4

Catheter in bladder =

colonization w/ water-loving bacteria that start with P

4

pH of 8 =

Urea-splitting bacteria (Struvite)

4

Abx most effective in both Complicated and Uncomplicated UTI

Cipro

5

Why is there an increased rate of UTI in pregnancy

Progesterone lowers motility --> Stagnate urine

7

How does contraception affect rate of UTI

foreign body contraceptives increase rate

8

2 Abx for Pyelonephritis that have lowest renal concentrations

Cephalothin, Ampicillin

9

Abx most effective in complicated but not uncomplicated

Ceftriaxone, Gentamicin

10

What percent of UTI bactereria come from GI

95%

12

2 main causes of Dysuria

Classic Cystitus (50%), Acute Urethral Syndrome (40%)

12

UTI + Obstruction =

Papillary Necrosis

14

Male vs female in elderly

Male catch up due to impaired flow (BPH)

15

Receptor for bacterial fimbriae on uroepithelium

P blood group antigen

15

Painless hematuria =

Cancer

16

Two most common organisms in UTI

E coli, Staph saprophyticus

18

WBC casts indicate

kidney involvement

19

Antibiotic duration in men vs women

Longer use in men because there must be something structural

20

Frequent cause of altered mental status

Infection

21

Recurrent gonorrhea causes

Urethral stricture

22

Male vs female in infants

Male > Female

23

Virulence factor that impairs phagocytosis

K antigen (capsular polysaccharides)

25

Acute Urethral Syndrome vs Classic Cystitus

Classic is > 10^5 cfu/mL, Acute Urethral is

27

Why do UTI's more frequently progress in pregnant women?

Immunosuppressive state

28

Struvite Renal Calculi occur in patients with

some abnormality of tract

29

Organism in young females that aren't too sick

Staph Saprophyticus

30

T/F: Hematuria is a common feature of UTI

false, should be thinking more tubulointersitial disease

31

Significant bacteruria is what amount

>15^5 cfu

32

In Acute Urethral Syndrome, inflammatory response is limited to

the Urethra

33

If multiple organisms in urine culture

Reported as contaminated (False positive)

34

Role of Tamm-Horsfall in UTI

Thought that it may inhibit colononization and adherence

35

2 signs of contaminated urine culture

Multiple organisms, Lots of squamous cells