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Antimicrobial Susceptibility - Extended Spectrum Beta Lactamase
0063999
Ordering Recommendation

Determine in vitro susceptibility to antimicrobial agents for extended spectrum beta lactamase producing-organisms.

Mnemonic
MA ESBL
Methodology
Disk Diffusion
Performed
Sun-Sat
Reported
2-4 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Actively growing E. coli, Klebsiella species, or Proteus mirabilis in pure culture. 
Specimen Preparation
Transport sealed container with pure culture on agar slant or in bacterial transport media.  Place each specimen in an individually sealed bag. 
Storage/Transport Temperature
Room temperature. 
Unacceptable Conditions
Mixed cultures or non-viable organisms. 
Remarks
Isolate identification and specimen source required. 
Stability
Ambient: 1 week; Refrigerated: 48 hours; Frozen: Unacceptable 
Reference Interval
Negative
Interpretive Data
Currently there are no CLSI guidelines for testing organisms other than E. coli,Klebsiella spp., and Proteus mirabilis for the presence of ESBL activity. The CLSI-approved method does not rule out resistance by other mechanisms.

Note
The following agents are tested with and without clavulanic acid: ceftazidime and cefotaxime.

An additional processing fee will be billed for all organisms not submitted in pure culture, as indicated in the specimen requirements.

If species identification is not provided, identification will be performed at ARUP. Additional charges apply.
Components
Component Test Code*Component Chart NameLOINC
0063999Susceptibility, ESBL Screen6984-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • beta lacatamase susceptibility
  • Cephalosporins
  • ESBL
  • Extended Spectrum Beta Lactamase Susceptibility