Writing
Notes on resistance data, and how to report it honestly
Five pieces on the parts of this work that are easy to get subtly wrong: local rates, the metrics a program is asked for, what an antibiogram test actually is, how susceptibility is measured, and what the guidelines ask of you.
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8 min read
Antibiotic resistance rates are local, and national averages mislead
A national resistance percentage is an average of populations that behave nothing alike. Here is what actually varies, why it varies, and how to measure the version that applies to your own patients.
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9 min read
Antibiotic stewardship metrics, and what a program actually measures
DOT, DDD, SAAR and time to optimal therapy each answer a different question, and each one can be gamed by a change in case mix. A practical guide to what to report and what to say about it.
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8 min read
Antibiogram test explained, from one culture to a cumulative report
The word antibiogram means two different things: the susceptibility panel for one patient and the cumulative report for a whole facility. The difference explains most of the confusion around it.
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9 min read
Antimicrobial susceptibility: MIC versus disk diffusion, and what each tells you
One method gives you a number with a range attached, the other a category from a zone of inhibition. The choice affects what your antibiogram can do later, particularly if breakpoints change.
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8 min read
Antimicrobial stewardship guidelines: the CDC Core Elements in practice
The Core Elements are a short list that is easy to agree with and harder to evidence. A practical read of what each one means for a small program with limited pharmacist time.
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