
Concept explainers
(1)
To determine:
How the patient got E. coli in his blood.
Case summary:
In the given scenario, a construction worker in his mid 30s, complained to his physician about shortness of breath, and a cough that persisted for three weeks. The doctor found out about his history with asthma and intravenous drug abuse, and believed that he has an upper respiratory disturbance.
(2)
To determine:
The effects of E. coli on the inner structures of his heart.
Case summary:
In the given scenario, the patient’s condition got worse, two weeks after visiting the doctor, so he rushed to the ER, where his heartbeat was accelerated and he appeared to be dehydrated. The ER staff administered the IV infusion of fluids, took blood for analysis and X-rayed his chest, which revealed that he had an abnormally enlarged heart and fluid throughout lungs.
(3)
To determine:
The factors in the medical treatment that may have exacerbated the disease, and why.
Case summary:
In the given scenario, the doctor found out about the construction worker’s history with asthma and intravenous drug abuse, and believed that he has an upper respiratory disturbance. So he gave him a steroid to reduce swelling in the airway. Two weeks later, the patient’s condition got worse.

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Chapter 20 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
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