05.20 - UTIs (Brint) - PP Flashcards

1
Q

2 frequent causes of hematogenous UTI

A

Bacterial endocarditis, Indwelling venous catheters

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1
Q

How can you tell if kidney is involved

A

WBC Casts

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2
Q

Blood culture when pyelonephritis

A

Will be positive

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3
Q

How does preganancy affect rate of pyelonephritis

A

Greatly increases

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3
Q

Fever, Chills, Flank pain, CVAT =

A

Upper Tract Infection

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4
Q

Catheter in bladder =

A

colonization w/ water-loving bacteria that start with P

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4
Q

pH of 8 =

A

Urea-splitting bacteria (Struvite)

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4
Q

Abx most effective in both Complicated and Uncomplicated UTI

A

Cipro

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5
Q

Why is there an increased rate of UTI in pregnancy

A

Progesterone lowers motility –> Stagnate urine

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7
Q

How does contraception affect rate of UTI

A

foreign body contraceptives increase rate

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8
Q

2 Abx for Pyelonephritis that have lowest renal concentrations

A

Cephalothin, Ampicillin

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9
Q

Abx most effective in complicated but not uncomplicated

A

Ceftriaxone, Gentamicin

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10
Q

What percent of UTI bactereria come from GI

A

95%

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12
Q

2 main causes of Dysuria

A

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

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12
Q

UTI + Obstruction =

A

Papillary Necrosis

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14
Q

Male vs female in elderly

A

Male catch up due to impaired flow (BPH)

15
Q

Receptor for bacterial fimbriae on uroepithelium

A

P blood group antigen

15
Q

Painless hematuria =

16
Q

Two most common organisms in UTI

A

E coli, Staph saprophyticus

18
Q

WBC casts indicate

A

kidney involvement

19
Q

Antibiotic duration in men vs women

A

Longer use in men because there must be something structural

20
Q

Frequent cause of altered mental status

21
Q

Recurrent gonorrhea causes

A

Urethral stricture

22
Q

Male vs female in infants

A

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