Click here for more information about laboratory operations and procedures
Laxative screen, stool
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | LAXS |
| Test group | Laxative |
| Performed by | NMS via Quest |
| Sendout? | Yes |
| Method | TLC, AAS, ICPAES |
| Collection Instructions | Submit only liquid stool for testing for cathartic laxatives profile. The stool should be submitted in a tightly screw-capped container. |
| Container type | Urine cup |
| Amount to Collect | See preferred volume |
| Sample type | Stool (liquid) |
| Preferred volume | 20 mL stool |
| Min. Volume | 20 mL stool |
| UCSF Rejection Criteria | Formed stool |
| Processing notes | Freeze sample at -20C. Ship frozen on dry ice. Order Quest test #3141N |
| Ref Lab Rejection Criteria | Received at room temperature. |
| Normal range | |
| Synonyms | cascara; senna; bisacodyl; penolpthalein; anthroquinones; dulcolax; ex-lax |
| Turn around times | Turnaround 10-14 days |
| Additional information | This assay will detect abuse of the common laxatives such Dulcolax, Phenolax and Clysodrast. The reporting limits for stool specimens are approximations and may vary with the Matrix consistency. |
| CPT coding | 82489-90, 83735-90, 84100-90 |
| LOINC code | 21361-1 |
| Last Updated | 3/24/2013 7:32:42 PM |
| Entry Number | 1082 |
If you have additional questions regarding this test, please call: 415-353-1667