How does one interpret the susceptibility results from figure 3? What characteristics does this organism possess which account for these results?
How does one interpret the susceptibility results from figure 3? What characteristics does this organism possess which account for these results?
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:How does one interpret the susceptibility results from figure 3? What characteristics
does this organism possess which account for these results?
Transcribed Image Text:The patient was a 44 year-old male with a past medical history significant for
hypertension, non-insulin-dependent diabetes, high cholesterol, and heavy smoking (2
packs/day). He presented to the emergency room with complaints of chest pain and was found to
have suffered a myocardial infarction (heart attack). A cardiac catheterization on hospital day 3
showed three arterial occlusions, and he underwent a triple-bypass on hospital day 5. On day 7,
he developed septic shock with acute respiratory and renal failure, requiring intubation. He had
a fever at that time of 39.3° C and two blood cultures were obtained. A chest x-ray showed left
lung pleural effusion and a chest tube was inserted to drain the effusion. On day 11, pus was
leaking from the sternal wound. Cultures derived from the wound and from the chest tube grew
the organism noted in figures 1 and 2. A Kirby-Bauer disk diffusion assay is shown in figure 3.
Figure 1: Organism under 1000x
ANG 2
ALLEY CO
ALE S
Co
H
Feren bete
0.000
1984
Figure 2: Organism grown on 5% BAP
Figure 3: K-B disk diffusion assay.
The organism is shown to be
resistant gentamycin, oxacillin,
penicillin, and erythromycin. The
organism is sensitive to vacomycin
and TMP/SMX.
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