Antimicrobial Susceptibility Test
Test Schedule
| Lab | Lab section | Days | Turnaround |
|---|---|---|---|
| WADDL - Pullman | Bacteriology | Mon-Fri | 1-3 days |
Price:
$55.00
Description
Antimicrobial susceptibility testing (AST) is a valuable diagnostic tool for determining effective treatment for bacterial infections. WADDL offers minimum inhibitory concentration (MIC) panels which include antimicrobials appropriate for food animal, canine, feline, equine, and avian species.
AST is performed per Clinical and Laboratory Standards Institute (CLSI) guidelines and reviewed by a board‑certified veterinary bacteriologist to ensure:
- Appropriate selection and exclusion of antimicrobials based on the bacterial species identified, site of infection, and animal species
- Recognition and reporting of antimicrobials based on intrinsic resistance
- Tiered reporting of antimicrobials based on stewardship principles, including avoidance of unnecessarily broad‑spectrum or critically important antimicrobials when effective alternatives exist
Certain antimicrobial agents may not be reported despite in vitro testing if they are considered clinically inappropriate due to intrinsic resistance, lack of efficacy, toxicity concerns, pharmacokinetics/pharmacodynamics (PK/PD) or stewardship considerations.
Our AST service is designed to support evidence‑based treatment decisions while promoting responsible antimicrobial use in veterinary medicine. By combining standardized testing with expert review, we aim to help clinicians select the most appropriate therapy while minimizing the development of antimicrobial resistance.
Our subject matter experts are available to consult if you have questions regarding result interpretation or antimicrobial selection.
For aquatic susceptibility testing please refer to the Aquatic Antimicrobial Susceptibility Test.
Specimens Required
Sampling Requirements
For additional information on how to collect and submit a sample please visit our Submit a Sample page.
Collection Container
- Sealed plate or slant
Packing Instructions
For additional information, please visit our Packing and Shipping page.
Special Instructions
Bacterial culture must be performed to recover an isolate before testing can be done. Cost of culture is separate.
Ordering Instructions
For online test ordering please visit our Submit a Sample page for additional information.
To submit a specimen without submitting through our online portal please see our Forms page for fillable forms and further instruction.