UTI long Flashcards

1
Q

What’s the most common pathogen in UTI?

A

E. coli

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2
Q

What is Bacteriuria?

A

Presence of bacteria in urine

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3
Q

What is asymptomatic Bacteriuria?

A

Presence of bacteria in urine in the absence of signs/symptoms

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4
Q

What is symptomatic bacteriuria?

A

Presence of bacteria in urine w/ signs and symptoms of infection

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5
Q

What does lower UTI involves?

A

Bladder, prostate and urethra

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6
Q

What is cystitis?

A

Symptomatic infection of the bladder

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7
Q

What body parts do upper UTI involves?

A

Involves the kidney and ureter

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8
Q

What acute pyelonephritis?

A

Symptomatic infection of kidneys

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9
Q

Define Prostatitis?

A

inflammation of the prostate gland

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10
Q

What are common pathogens that cause UTIs in young women’s?

A

E. coli, Staphylococcus Saphrophyticus (honeymoon bug)

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11
Q

What bacteria is most common in UTI related STDs?

A

Chlamydia trachomatis

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12
Q

What gender is more prone to getting UTIs? why?

A

females because of shorter Urethra

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13
Q

Where do we get E.coli infections from?

A

GI fecal flora

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14
Q

How are most UTIs caused by Ecoli?

A

caused by feces that enter the ureter and ascend to the bladder. it can cause inflammation (cystitis)

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15
Q

How is Pyelonephritis caused?

A

Bacteria may ascend to ureter into the kidneys causing Upper UTI (Pyelonephritis)

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16
Q

How does ecoli travels?

A

they possess flagella to enable motility

17
Q

What is fimbriae?

A

“fingers” it binds to bladder uroepithelia surfaces

18
Q

what are some of the virulence factors of UTI?

A

Urease: reduction of urea levels in urine
Lipopolysaccharide (LPS): Lipid A endotoxin that provoke an inflammatory response (i.e., Cytokine release)

19
Q

what are some of the host factors for UTI?

A

Obstruction: Urine flushing by bladder keep urine bacteria-free obstruction of urinary flow. it increases risk of getting UTI. High levels of bacterial ureases (e.g., Proteus) that can form kidney stones
most patient with a bladder catheter will develop cystitis.

20
Q

FTB: Urine is typically _________ and contains high ____________ concentration that inhibits bacterial growth.

A

Acidic, High urea.

21
Q

What is prostatitis?

A

Inflammation of the prostate gland (enlarged) and surrounding tissue due to infection

22
Q

What does PEK usually cause?

A

Bacterial acute or chronic prostatitis. Most common form is chronic.

23
Q

What type of bacteria most commonly causes Prostatitis?

A

E. coli

24
Q

what causes Acute pyelonephritis?

A

Symptomatic infection of kidneys (Usually caused by PEK)

25
Q

Name some of the medications that are primarily eliminated in feces.

A

Moxifloxacin, Macrolids, Rifampin

26
Q

nosocomial (Hospital Acquired) infections usually have _____________

A

B-lactamases (Penicillins, Cephlasporinases, ESBLs)

27
Q

How does B-Lactamase effects Cephlasporins?

A

No effect.

28
Q

T/F? Cephalosporins are not resistant to some Gram-negative B-Lactamases (ESBLs)

A

True

29
Q

What type of bacteria have ESBLs?

A

only gram negatives, which destroys all B-lactam antibiotics

30
Q

what can be deactivate by carbapenemases?

A

Carbapenems ( i know duh stfu)

31
Q

B-lactam resistance is due to what?

A

destruction by B-lactamases and ineffective binding to PBP2a in MRSA

32
Q

What B-lactam is covers MRSA?

A

Ceftaroline

33
Q

T/F? Enterococcus/VRE is resistant to Cephalosporins and flouroquinolones.

A

True

34
Q

What is special about Methanamine salts (Urex)

A

Methanamine component is hydrolyzed to formaldehyde in acid urine with antibacterial activity.