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Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. a. Tetracycline b. Streptomycin c. Penicillin d. Norfloxacin

Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. a. Tetracycline b. Streptomycin c. Penicillin d. Norfloxacin

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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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Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate.

a. Tetracycline
b. Streptomycin
c. Penicillin
d. Norfloxacin
Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. N P S Staphylococci were cultured with 4 standard disks. Diameters of clearance zones were measured: Norfloxacin, N: 14 mm T Tetracycline, T: 14 mm Streptomycin, S: 24 mm Penicillin-G, P: 29 mm
Transcribed Image Text:Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. N P S Staphylococci were cultured with 4 standard disks. Diameters of clearance zones were measured: Norfloxacin, N: 14 mm T Tetracycline, T: 14 mm Streptomycin, S: 24 mm Penicillin-G, P: 29 mm
Typical Zone Diameters For Some Common Antibiotics ANTIBIOTIC Ampicillin Ampicillin b Bacitracin Chloramphenicol Clindamycin Erythromycin Gentamicin Neomycin Norfloxacin Penicillin G Penicillin Gd. Polymyxin B Streptomycin Tetracycline AMOUNT ON DISC 10 µg 10 µg 10 units 30 µg 2 μg 15 µg 10 µg 30 μg 10 µg 10 units 10 units 300 units 10 με 30 με For Gram-negative organisms and enterococci For staphylococci ZONE OF INHIBITION (Diameter in mm) INTERMEDIATE RESISTANT 13 or less 28 or less 8 or less 12 or less 14 or less 13 or less 12 or less 12 or less 12 or less 28 or less 11 or less 8 or less 11 or less 14 or less 9-12 13-17 15-16 14-22 13-14 13-16 13-14 12-21 9-11 12-14 15-18 SUSCEPTIBLE 17 or greater 29 or greater 13 or greater 18 or greater 17 or greater 23 or greater 15 or greater 17 or greater 15 or greater 29 or greater 22 or greater 12 or greater 15 or greater 19 or greater For staphylococci d For organisms other than staphylococci
Transcribed Image Text:Typical Zone Diameters For Some Common Antibiotics ANTIBIOTIC Ampicillin Ampicillin b Bacitracin Chloramphenicol Clindamycin Erythromycin Gentamicin Neomycin Norfloxacin Penicillin G Penicillin Gd. Polymyxin B Streptomycin Tetracycline AMOUNT ON DISC 10 µg 10 µg 10 units 30 µg 2 μg 15 µg 10 µg 30 μg 10 µg 10 units 10 units 300 units 10 με 30 με For Gram-negative organisms and enterococci For staphylococci ZONE OF INHIBITION (Diameter in mm) INTERMEDIATE RESISTANT 13 or less 28 or less 8 or less 12 or less 14 or less 13 or less 12 or less 12 or less 12 or less 28 or less 11 or less 8 or less 11 or less 14 or less 9-12 13-17 15-16 14-22 13-14 13-16 13-14 12-21 9-11 12-14 15-18 SUSCEPTIBLE 17 or greater 29 or greater 13 or greater 18 or greater 17 or greater 23 or greater 15 or greater 17 or greater 15 or greater 29 or greater 22 or greater 12 or greater 15 or greater 19 or greater For staphylococci d For organisms other than staphylococci
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