My question is about how to treat antibiotic synergy tests in LOINC. I am referring to true synergy tests, not to the use of high doses of antibiotics to predict in vivo sinergy in enterococcus or other microorganisms and that are coded with the components .high potency
In our case, we sometimes test ceftazidime/avibactam with aztreonam in MBL-producing bacteria. I have not found any LOINC terms related to this. On occasion, we may try other antibiotic combinations.
The method we use is E-test overlay (gradient strip) and report the FIC value with an interpretation (more information available in: When Does 2 Plus 2 Equal 5? A Review of Antimicrobial Synergy Testing - PMC)
Any help would be appreciated!