In regard to culture and cytology results, can you please furnish a list of which pathogens are "normal" and thus do not require treatment? And secondly a list of the ones that do require treatment along with the appropriate drugs to use? How many times (days) do you recommend infusing when treatment is called for? Thanks!
With the exception of Pseudomonas aeruginosa, if there is an organism identified on culture, but no inflammatory cells present on cytology, then you are almost certainly looking at a contaminant organism. Note that the organism is not going to be considered a pathogen until it is causing issues within the body, and at that time, inflammatory cells (particularly neutrophils) will be present.
Thank you so much for the information. In 32 years of breeding miniature horses and doing routine cultures when indicated, I had very few positive results. In the past few years (different vet, same lab), every culture taken has been positive (with vet wanting to treat), which has made me doubtful of the results. This spring I have 3 open mares that I feel should be cultured as part of responsible "homework," but wanted to get more education for me first. Based on your article it seems likely that my current vet has not been doing cytology smears, so I will be sure to request those this time!
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