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Shiga Toxin Assay
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | T315 |
| Performed by | State Microbial Disease Laboratory |
| Sendout? | Yes |
| In House Availability | Sent to state lab Monday-Friday day shift only. |
| Method | Tissue culture |
| Collection Instructions | Submit stool to laboratory within 3 hours of collection. If specimen will be submitted to the laboratory more than 3 hours after collection, or after 11 pm when Microbiology is closed, submit stool in C & S (Cary-Blair) Medium collection vial. Add stool to red line on vial and mix well with spoon. Obtain vials from ACC phlebotomy stations at A 122 or A 220A or from the Emergency Dept. |
| Container type | Clean container or Cary-Blair transport media |
| Sample type | Fresh stool |
| Preferred volume | 8 gm or 8 mL |
| Min. Volume | 8 gm or 8 mL |
| UCSF Rejection Criteria | Improperly submitted samples. |
| Processing notes | If sample is submitted unpreserved, place in Cary-Blair vial. Refrigerate Cary-Blair vials |
| Normal range | No toxin detected |
| Critical value | Shiga Toxin detected |
| Synonyms | Hemolytic uremic syndrome; HUS; verocytotoxin |
| Stability | Unpreserved 3 hours, preserved 1 week. |
| Turn around times | Minimum 2 weeks |
| Additional information | The stool sample is sent out for this test when E. coli 0157 culture is requested or when a bloody stool is received for bacterial culture. |
| LOINC code | 29257-3 |
| Last Updated | 10/18/2012 12:27:09 PM |
| Entry Number | 983 |
If you have additional questions regarding this test, please call: 415-353-1667