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There are 4 categories of bacterial sensitivity to antibiotics: First, pansensitive - this means the bug is sensitive to all the antibiotics usually tested for potential treatment.
Second, sensitive - the bug is sensitive to several potential antibiotics, but it may be resistant to others.
Third, multiresistant - this is more complicated. According to the current definition, this means the bug is resistant to all antibiotics in two or more classes of antibiotics. Currently 3 classes of antibiotics are considered appropriate for treatment of Pseudomonas: certain beta-lactams, such as ceftazidime (Fortaz®); certain quinolones, such as ciprofloxacin (Cipro®); and aminoglycosides, such as tobramycin (Nebcin®, Tobi®).
Fourth, panresistant - the bug is resistant to all tested antibiotics of all classes.
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