26466 Antimicrobial Susceptibility, Aerobic Bacteria, Varies (ZMMLS)

​​Antibiotic Susceptibility, Bacterial Susceptibility Testing, Extended Spectrum Beta-Lactamase (ESBL), MIC (Minimum Inhibitory Concentration), Minimum Inhibitory Concentration (MIC), Pneumococcus Susceptibility, Streptococcus pneumoniae Susceptibility, Susceptibility Testing, Amikacin, Amoxicillin, Amoxicillin-clavulanate, Ampicillin, Ampicillin-sulbactam, Azithromycin, Aztreonam, Cefaclor, Cefazolin, Cefdinir, Cefepime, Cefixime, Cefotaxime, Cefpodoxime, Ceftaroline, Ceftazidime, Ceftazidime-avibactam, Ceftolozane-tazobactam, Ceftriaxone, Chloramphenicol, Ciprofloxacin, Clarithromycin, Clindamycin, Colistin, Daptomycin, Doxycycline, Ertapenem, Erythromycin, Fosfomycin, Gentamicin, Imipenem, Levofloxacin, Linezolid, Meropenem, Metronidazole, Minocycline, Mupirocin, Nitrofurantoin, Ofloxacin, Oxacillin, Penicillin, Piperacillin, Piperacillin-tazobactam, Polymyxin, Quinupristin-dalfopristin, Rifampin, Sulfamethoxazole, Tedizolid, Tetracycline, Tigecycline, Tobramycin, Trimethoprim, Trimethoprim-sulfamethoxazole, Vancomycin, Achromobacter, Acinetobacter, Aeromonas, Aggregatibacter, Arcanobacterium, Arthrobacter, Bacillus, Brevibacillus, Brevibacterium, Brevundimonas, Burkholderia, Campylobacter, Cardiobacterium, Citrobacter, Cohnella, Coli, Corynebacterium, CRE, Cronobacter, Dermatobacter, Eikenella, Enterobacter, Enterococcus, Erysipelothrix, ESBL, Escherichia, Gemella, Gonorrhoeae, Gram negative, Gram positive, Haemophilus, Helicobacter, Klebsiella, Kingella, Lactobacillus, Lactococcus, Leifsonia, Leuconostoc, Listeria, Lysinibacillus, Meningitidis, MDR, MDRO, Microbacterium, MRSA, Moraxella, Neisseria, Ochrobactrum, Paenibacillus, Pandoraea, Pasteurella, Pediococcus, Pneumo, Pneumococcus, Proteus, Pseudomonas, Raoultella, Rothia, Salmonella, Serratia, Shewanella, Shigella, Sphingomonas, Sporolactobacillus, Staph, Staphylococcus, Stenotrophomonas, Strep, Streptococcus, Trueperella, Turicella, VISA, Vibrio, Viridans, VRE, Yersinia, Oerskovia, Avibactam-ceftazidime, Avycaz, Meropenem-vaborbactam, Sivextro, Vabormere, Zerbaxa, Lelliottia, Delafloxacin, Omadacycline, H pylori, H. pylori, mecA, Nuzyra, Abiotrophia, Cefiderocol, Colistin Agar Testing, Enterobacteriales, Granulicatella

​When this test is ordered, the reflex tests may be performed at an additional charge.

All aerobically growing bacteria submitted will automatically have susceptibility testing performed and billed as appropriate. Antimicrobial agents appropriate to the organism and specimen source will be tested according to Mayo Clinic's practice and the laboratory's standard operating procedures.

If appropriate, testing for mecA will be performed by polymerase chain reaction (PCR) under MARP1 / mecA, Molecular Detection, PCR (Bill Only). Indications for mecA testing include inadequate growth by phenotypic antimicrobial susceptibility testing, lack of current organism breakpoints for oxacillin or cefoxitin, and assessment of discrepancies between cefoxitin and oxacillin phenotypic testing results.

In the event that an isolate of Helicobacter pylori does not grow from a client sample or does not grow for susceptibility testing, reflex testing for HPCR1 / Helicobacter pylori with Clarithromycin Resistance Prediction, Molecular Detection, PCR (Bill Only) may be added.

Mayo Clinic Laboratories will not perform susceptibility testing on select agents (eg, Bacillus anthracis, Brucella species, Burkholderia mallei, Burkholderia pseudomallei, Francisella tularensis, and Yersinia pestis). Consult with your state health department or the CDC regarding antimicrobial susceptibility testing of such isolates.

​Organism identification and specimen source are required.

1. Perform isolation of infecting bacteria.

2. Organism must be in pure culture, actively growing. Do not submit mixed cultures.

​In vitro susceptibility does not guarantee clinical response. Therefore, the decision to treat with a particular agent should not be based solely on the antimicrobial susceptibility testing result.

​Determining the in vitro susceptibility of aerobic bacteria involved in human infections.

​When this test is ordered, the reflex tests may be performed at an additional charge.

All aerobically growing bacteria submitted will automatically have susceptibility testing performed and billed as appropriate. Antimicrobial agents appropriate to the organism and specimen source will be tested according to Mayo Clinic's practice and the laboratory's standard operating procedures.

If appropriate, testing for mecA will be performed by polymerase chain reaction (PCR) under MARP1 / mecA, Molecular Detection, PCR (Bill Only). Indications for mecA testing include inadequate growth by phenotypic antimicrobial susceptibility testing, lack of current organism breakpoints for oxacillin or cefoxitin, and assessment of discrepancies between cefoxitin and oxacillin phenotypic testing results.

In the event that an isolate of Helicobacter pylori does not grow from a client sample or does not grow for susceptibility testing, reflex testing for HPCR1 / Helicobacter pylori with Clarithromycin Resistance Prediction, Molecular Detection, PCR (Bill Only) may be added.

Mayo Clinic Laboratories will not perform susceptibility testing on select agents (eg, Bacillus anthracis, Brucella species, Burkholderia mallei, Burkholderia pseudomallei, Francisella tularensis, and Yersinia pestis). Consult with your state health department or the CDC regarding antimicrobial susceptibility testing of such isolates.

A "susceptible" category result and a low minimum inhibitory concentration value indicate in vitro susceptibility of the organism to the antimicrobial tested.

Refer to Reference Values for interpretation of various antimicrobial susceptibility interpretive categories (ie, susceptible, susceptible-dose dependent, intermediate, nonsusceptible, resistant, or epidemiological cutoff value).