CORE-ABR
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Pathogen

Staphylococcus epidermidis

A coagulase-negative staphylococcus that lives on normal skin. Usually a colonizer; sometimes the cause — particularly with devices and hardware.

Also: coagulase-negative staph, CoNS

Gram-positive bacteriaUTI panelWound panelGraded on the antibiogram

How CORE-ABR grades it

Graded like other staphylococci, with detected genes applied. Methicillin resistance is common in this species. The pathogen summary characterizes colonizer likelihood, and the load band gives the quantity to weigh it.

A negative panel is not a green light: blaZ, the staphylococcal penicillinase, isn't on most panels, so penicillins read 0 for staphylococci — and inhibitor combinations restore activity.

What the report shows for Staphylococcus epidermidis

  • Detected or not detected, with Ct, limit of detection and cycles above LOD — see PCR reporting.
  • A short pathogen summary, including colonizer likelihood where it applies.
  • A graded column on the antibiogram, and therapy options by scenario on the P.A.C.T. report.
  • When not detected, it is still listed among targets tested.

Resistance genes CORE-ABR applies

When detected, each of these genes is applied to Staphylococcus epidermidis only for the agents its mechanism defeats.

mecA / mecCMethicillin resistance (MRSA, MRSE)2 organisms on panelermB / ermCMLSb resistance7 organisms on paneltetB / tetMTetracycline resistance9 organisms on panel

Tagged

Decision support only. The treating clinician decides. Molecular genotype does not replace phenotypic susceptibility testing, culture, or public-health reporting. Absence of a detected resistance gene does not establish susceptibility. Organism targets vary by panel; CORE-ABR is configured to the assay each laboratory runs.