Click here for more information about laboratory operations and procedures
Fecal White Blood Cell Exam
|Approval req'd?||Yes, for samples from inpatients collected > 72 hours after admission, contact Microbiology at 415-353-1268.|
|In House Availability||Daily, day and evening shift|
|Collection Instructions||Select a sample of diarrheal stool with an applicator stick, including bloody or mucous discharge if present.
Deliver to lab immediately.
Do not collect samples between 2200 and 0630 hours
|Container type||Clean container|
|Amount to Collect||See preferred volume|
|Sample type||Fresh diarrheal stool|
|Preferred volume||10 gm|
|UCSF Rejection Criteria||Samples received >3 hours of collection. Stool in preservative.|
|Processing notes||Maintain sample at room temperature|
|Normal range||Negative (No cells)|
|Synonyms||Fecal leukocytes; stool analysis|
|Turn around times||4 hours|
|Additional information||The presence or absence of fecal leukocytes is of poor sensitivity and specificity in diagnosing hospital-acquired diarrhea, and is no longer offered on hospitalized patients > 72 hours post admission.
See also Stool Analysis
|Last Updated||6/19/2013 2:50:18 PM|
If you have additional questions regarding this test, please call: 415-353-1667