Antimicrobial Susceptibility - Fastidious Organism
Also known as: MA FAST
Use
This test is used to determine in vitro susceptibility to antimicrobial agents for fastidious bacterial organisms. It helps in deciding the appropriate antimicrobial therapy for infections caused by such organisms. Fastidious organisms often require specific growth conditions, making susceptibility testing crucial for effective treatment. The test identifies whether the organism is susceptible, intermediate, or resistant to various antimicrobial agents, thus guiding treatment strategies.
Special Instructions
The test requires actively growing isolate in pure culture for accurate results. Transport the sealed container with pure culture on agar slant or in bacterial transport media. Ensure each specimen is placed in an individually sealed bag. Consideration is needed for organism and source-specific reporting, and any deviation in the submission requirements may incur additional processing fees.
Limitations
This test might not be applicable for mixed cultures or nonviable organisms, as they are considered unacceptable conditions for accurate susceptibility testing. Specimens that are not submitted in pure culture will require additional processing, potentially delaying results. Species identification is necessary for this test; if not provided, identification will incur additional charges. Furthermore, the test is dependent on the isolation and growth of bacteria in appropriate media, which may not be possible for all fastidious organisms.
New York Approved
Methodology
Culture-based
Biomarkers
LOINC Codes
- 29576-6
Result Turnaround Time
2-7 days
Related Documents
For more information, please review the documents below
Specimen
Cultured Cells
Volume
Not provided
Minimum Volume
Not provided
Container
Sealed container with pure culture on agar slant or in bacterial transport media
Storage Instructions
Transport at room temperature.
Causes for Rejection
Mixed cultures or nonviable organisms.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | Unacceptable |
| Frozen | Unacceptable |