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Antimicrobial Susceptibility, Aerobic Bacteria, MIC

Test Code
RSDT


Alias/See Also
94881


CPT Codes
87181, 87186

Preferred Specimen
Bacterial isolate swab collected with E-Swab collection and transport system

Note: Organism identification and specimen source (anatomical body site) are required


Instructions

E-Swab or Flocked swab:
1. Perform isolation of bacterial isolate.
2. Utilize the flocked swab to obtain an adequate sample of pure cultured isolate. Do not submit mixed cultures.
3. Place swab into the transport system containing 1-mL liquid Amies transport medium.
4. If needed, break off end of swab and close the transport tube.
5. Place the transport system into the secondary infectious container for shipment.
6. Each isolate must be submitted under a separate order.

Note: For the following organisms, submit an agar slant or other appropriate media to ensure viability upon arrival to the laboratory; Neisseria gonorrhoeae, Campylobacter species, Helicobacter pylori, and any other fastidious organism.

Pure culture:
1. Perform isolation of bacterial isolate.
2. Bacterial organism must be submitted in pure culture, actively growing. Do not submit mixed cultures.
3. Place the agar slant or other appropriate media into the secondary infectious container for shipment.
4. Each isolate must be submitted under a separate order.



Transport Temperature
Room temperature


Specimen Stability
Room temperature: Determined by viability
Refrigerated: Determined by viability
Frozen: Unacceptable


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Agar plate


Methodology
Minimum Inhibitory Concentration (MIC) by Agar Dilution

Setup Schedule
Set up: Daily; Report available: 4-7 days


Reference Range
See Laboratory Report


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


Performing Laboratory
Mayo Clinic Laboratories
200 First Street SW
Rochester, MN 55905


Last Updated: June 22, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.