Urinary Tract Infection Flashcards Preview

► Med - Pathology > Urinary Tract Infection > Flashcards

Flashcards in Urinary Tract Infection Deck (27):
1

What organism is responsible for is responsible for 80 – 90% of uncomplicated urinary tract infections?

E. coli

2

Bacteruria

Bacteria in the urine

3

Cystitis

Infection of the bladder characterized by dysuria, frequency, urgency and suprapubic pain

4

Urethritis

Infection confined to urethra and characterized by dysuria and mucoid or purulent discharge from the urethral meatus

5

Pyelonephritis

Infection in kidney characterized by flank pain/tenderness and fever, often associated with dysuria, urgency and frequency

6

What is the most common route of infection for a UTI?

Ascending – Gut flora reach bladder via urethra

7

What is the main microbial virulence factor in the pathogenesis of UTIs?

Adherence factors – pili or fimbriae

8

PAP (P fimbriae)

P blood group antigens. Recognizes
digalactoside determinants on human erythrocytes and urothelium.

9

What are some risk factors for UTIs?

- Frequency of sexual intercourse
- Use of spermicide-containing contraceptive
- Catheter
- Pregnancy

10

Neonates - which gender is affected more with UTIs?

Males

11

Children and Adults - which gender is affected more with UTIs?

Females

12

Elderly - which gender is affected more with UTIs?

Males and females the same

13

What are the clinical features of cystitis?

• Acute onset dysuria, urgency, frequency
• Suprapubic pain and tenderness
• Young sexually active women
• Hematuria – 50%
• Pyuria

14

What are the major organisms that cause

E.coli
S.saprophyticus
Proteus species
Klebsiella species

15

What are the major organisms that cause urethritis?

N.gonorrhoeae
C. trachomatis

16

What are the major organisms that cause vaginitis?

Candida
Trichomonasvaginalis
Normal vaginal flora (BV)

17

Dysuria
Pyuria
Hematuria
for Cystitis?

Dysuria - Internal
Pyuria - Usually
Hematuria - Sometimes

18

Dysuria
Pyuria
Hematuria
for Urethritis?

Dysuria - Internal
Pyuria - Usually
Hematuria - Rarely

19

Dysuria
Pyuria
Hematuria
for Vaginitis?

Dysuria - External
Pyuria - Rarely
Hematuria - Rarely

20

What is the most frequent type of prostatitis?

Non-bacterial

21

What population is suprapubic aspiration often done on?

Neonates

22

What does leukocyte esterase indicate?

Pyuria

23

What does nitrite indicate?

Detects action of bacterial nitrate reductase on urinary nitrates

24

What is the protocol for UTI treatment?

• Treat symptomatic patients regardless of age

25

What is the typical antibiotic treatment period for acute cystitis?

3-5 days

26

What is the typical antibiotic treatment period for pyelonephritis?

5-7 days

27

What is the most important risk for catheters?

Duration of use

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