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HelpTest Code C DIFF Clostridiodes Difficile NAAT Reflex to TOX AG
Additional Codes
LAB24937
Performing Laboratory
Central Peninsula Hospital
Collection Method
Follow appropriate collection procedures
Container
Sterile cup
Specimen Type
Unpreserved stool soft or unformed
Minimum Volume
0.5ml
Specimen Stability
| Ambient | 24 hours |
| Refrigerated (4°C to 8°C) | 5 days |
| Frozen(-40°C to 0°C) | N/A |
Reference or Target Ranges
Negative
Reportable Units
Positive or Negative
Critical Value
Positive C.Diff result
Reasons for Rejection
| Hemolysis Threshold | N/A |
| Icterus Threshold | N/A |
| Lipemia Threshold | N/A |
| Other | Formed stool, QNS, contaminated, improperly labeled, improper specimen type |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Microbiology |
| Methodology/Method Description | Cepheid GeneXpert |
Reflex Testing
A positive C.Diff result will reflex to C. diff tox ag EIA.
CPT Codes
Clostridiodes Difficile NAAT Reflex to TOX AG - 87493
C. Diff tox ag EIA - 87324
Last review/edit date
2025