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Exam #1: case study on UTI
Terms in this set (8)
What bacteria will always cause a UTI?
What is the normal white and red blood cell count in urine?
What levels would be a "sign" of having a UTI?
Normal: <10WBC and <4 RBC
UTI: >50WBC/HPF and >4 RBC/HPF
In a clean catch urine sample, what is the normal CFU/ml. And what would it be for someone with a UTI
Normal: 10^2-10^3 CFU/ml
UTI: >10^5 CFU/ml
What are the "symptoms" verses what are the "signs" of someone having a UTI?
2) chills and fever
3) pain with peeing
4) blood in urine
1) high temp.
2) high WBC and RBC in urine (>10WBC and >4RBC)
What does the sheep blood agar plate tell us about the bacteria?
- indicates whether the bacterium is beta-hemlotic or not
= does bacteria lyse(breakdown) blood?
What does the MacConkey agar plat indicate?
- selective against gram-positive
- selective for gram-negative
- differential for lactose fermenters
What are the two main infections associated with UTIs?
1) infection of bladder
2) infection of kidneys
If the patient has a past of ampicillin (antibiotic) treatment, then what virulence factors would the bacteria have that would make this a concern?
Virulence factor: beta-lactamase antibiotic resistance
- if bacteria has this they have the ability to withstand certain penecilin antibiotics
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