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Microbiology Exam 5
Chapter 26 - Urinary Tract infections
25
Microbiology
Undergraduate 2
04/19/2012

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Cards

Term
True or False: There are different incidence and pathogenesis in males and females for UTIs
Definition
True
Term
Which is more serious: A bladder infection (cystitis) or a kidney infection (pyelonephritis)
Definition
Pyelonephritis
Term
For which organ does this anatomy and physiology explain: Supplied by the renal artery and vein; can become infected from the bloodstream via the artery or upward through the ureter
Definition
The kidneys
Term
Describe the anatomy and physiology of the ureter
Definition
Peristalsis downward protects the kidneys from ascending infection
Term
What is the function of the bladder?
Definition
To hold urine
Term
Who are more likely to have bacteria ascend into the urethra?
Definition
Females
Term
What is the pH of urine
Definition
<6 to inhibit many bacteria
Term
True or False: Urine contains a low level of antibiotics made by lymphocytes in the bladder, prostate, and kidneys
Definition
True
Term
What can the bladder release into the urin if inflamed?
Definition
Neutrophils
Term
What is the normal bacterial flora of the anterior urethra in males?
Definition
coagulase-negative staphylococci, diptheroids
Term
Lactobacillus and enterococci are the bacterial flora of the anterior urethra in a male or female?
Definition
Female
Term
True or False: The upper urethra, bladder, prostate, and kidneys should all be sterile
Definition
true
Term
Describe the pathogenesis of cystitis (community-acquried) in females
Definition
Intestinal tract flora contaminate the urethra. Those species able to grow in urine and adhere to the bladder (uropathogens) cause cystitis
Term
True or False: Having a catheter increases your risk of getting cysitis
Definition
True
Term
Describe the pathogenesis of ascending pyelonephritis
Definition
Chronic or acute cystitis can eventually spread up the ureter, especially if the patient is dehydrated.
Term
What organism often causes pyelonephritis?
Definition
Often what caused the cystitis- E.coli
Term
Describe the pathogenesis of descending pyelonephritis
Definition
Bacteremia carries bacteria through the renal artery into the kidneys, gets in the glomerulus, start to abscess
Term
What causes descending pyelonephritis
Definition
S. aureus
Term
95% of cystitis cases are caused by what organism
Definition
E. coli
Term
Do kidney stones increase or decrease the incidence of pyelonephritis
Definition
Increase
Term
How is cystitis diagnosed
Definition
Obtain clean catch specimen, perform a urinalysis (a chemical and cellular examination, not a culture), urine culture
Term
How is a simple UTI treated
Definition
Assume it is E. coli, treatment empirically with trimethoprim/suflamethoxazole (78% susceptible), Keflex (90%), nitrofurantoin (94%) or fosfomycin
Term
How is a complicated UTI treated
Definition
Need a culture for susceptibility results, a stronger drug, longer duration
Term
How is pyelonephritis treated
Definition
With serious IV antibiotics
Term
What carries Leptospirosis?
Definition
Rodents and domestic animals, excreted in the urine
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