Blood Culture Vials Photo (IMAGE)
Caption
The figure showcases the “broth” used to monitor red blood cell depletion in whole blood spiked with one colony-forming-unit of E. coli bacteria, each incubated at different orbital shaking speeds — left to right: 0 RPM, 65 RPM, 120 RPM and 200 RPM — after four hours of incubation. This culturing raises a bacteria-rich, plasma-like layer of bacteria to the top of the vials, while clusters of stuck blood cells known as a Rouleaux formation sink to the bottom.
Credit
Provided by Pak Kin Wong
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License
CC BY-NC-ND