Within a three-day period at a large hospital five hemodialysis patients developed high fever, very low blood pressure and systemic shock. Bacterial cultures showed that each of the patients was infected with a different species of gram negative bacteria and that the infections were not related. How could all five patients have the same symptoms?
A. Fever and shock are symptoms of most bacterial infections
B. These symptoms are common in hemodialysis because the isotonic dialysis fluids cause the patient's red blood cells to undergo osmotic lysis.
C. In blood infections the blood pressure drops because the active transport system of the bacteria works against the heart.
D. All of these bacteria have an outer membrane with lipopolysaccharide
E. It is impossible to know why all five patients developed these symptoms.
Ans: D. All of these bacteria have an outer membrane with lipopolysaccharide
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