PMC10285599_01
Chest computed tomography on day 1 showed consolidation in the right upper lung lobe.
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Chest computed tomography showed dense infiltrative shadows mainly in her right lung (Figure 1).
Clinical course of the patient.
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Her clinical course is shown in Figure 2.
(From left to right) McFarland No. 1.0 and its dilutions of 100x, 1000x, and 10,000x, respectively.. The bacterial levels in these samples were 1.36 x 108 CFU/mL, 1.10 x 106 CFU/mL, 1.64 x 105 CFU/mL, and 1.44 x 104 CFU/mL, respectively.
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In order to closely examine the amount of bacteria in sputum culture, we prepared a bacterial solution adjusted to McFarland No. 1.0 and diluted it from 10x to 10,000x (Figure 3).
Various dilutions of McFarland fluid were tested using Ribotest Legionella.. (From above) McFarland No. 1.0 and its dilutions of 100x, 1000x, and 10,000x, respectively.
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However, the amount of bacteria in the solution diluted 100 times was 1.10 x 106 CFU/mL, which tested negative with Ribotest Legionella (Figure 4).