Using table C1 given to you in the coursework instructions, which ONE of the following would Proteus mirabilis be considered resistant to if the zone size was 20 mm? Select one:A.CiprofloxacinB.Co-amoxiclavC.MecillinamD.FosfomycinE.Nalidixic acid Table C1: Interpretative values for disc susceptibility evaluation of coliforms, E. coli and Proteus mirabilis to antimicrobialscommonly used to treat urinary tract infectionsAntibioticAmoxicillinAmpicillinCephalexinCiprofloxacinCo-amoxiclaveFosfomycing.hMecillinamNalidixic acidNitrofurantoinNorfloxacinTrimethoprimMIC BP (mg/L)R>3232324321288163242S≤3232324321288163242Disc content(µg)252530120/10200/50103020022.5R<1111-1911171516ColiformsI--Interpretation of zone diameters (mm)E. coli2_12 12-20 12--18-16 17SzR≤1111151911191317191516Sz R≤12 12 16 20 12 20 14 18 20 16 1711111119113314 1318 171516Pr. mirabilis|212 12 12 20 12 34 14 18-16 17Sz

Answered: Using table C1 given to you in the…

Human Anatomy & Physiology (11th Edition)

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Author:Elaine N. Marieb, Katja N. Hoehn

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Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Using table C1 given to you in the coursework instructions, which ONE of the following would Proteus mirabilis be considered resistant to if the zone size was 20 mm?

Select one:

Ciprofloxacin

Co-amoxiclav

Mecillinam

Fosfomycin

Nalidixic acid

Table C1: Interpretative values for disc susceptibility evaluation of coliforms, E. coli and Proteus mirabilis to antimicrobials
commonly used to treat urinary tract infections
Antibiotic
Amoxicillin
Ampicillin
Cephalexin
Ciprofloxacin
Co-amoxiclave
Fosfomycing.h
Mecillinam
Nalidixic acid
Nitrofurantoin
Norfloxacin
Trimethoprim
MIC BP (mg/L)
R>
32
32
32
4
32
128
8
16
32
4
2
S≤
32
32
32
4
32
128
8
16
32
4
2
Disc content
(µg)
25
25
30
1
20/10
200/50
10
30
200
2
2.5
R<
11
11
-
19
11
17
15
16
Coliforms
I
-
-
Interpretation of zone diameters (mm)
E. coli
2_12 12-20 12--18-16 17
Sz
R≤
11
11
15
19
11
19
13
17
19
15
16
Sz R≤
12 12 16 20 12 20 14 18 20 16 17
11
11
11
19
11
33
14 13
18 17
15
16
Pr. mirabilis
|
212 12 12 20 12 34 14 18-16 17
Sz

Expert Solution

Step 1

Proteus mirabilis is resistant towards Ciprofloxacin if a zone of inhibition is formed at 20mm. Thus the correct answer is option A. Ciprofloxacin. The antibiotic working concentration is 1 $μ$ g for the bacterial colonies.

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