Fecal Leukocyte

Abbrev Code:FLK   
Order Code:LAB265Order Name:Leukocyte Stool
Synonyms:Gram Stain, Stool; Stool Smear for White Cells; Fecal WBC; FLK; Tammocor
Methodology:Gram smear
CPT Codes: 89055 x1
Test Includes:Smear and semi-quantitation of leukocytes in stool.
Turnaround Time:Performed 24 hours/day; results are reported within 4 hours.
Associated Links:

IDDL Stool Collection Container Guidelines

Collection Instructions

Specimen:Feces, fresh diarrheal stool specimen, especially with blood or mucus.
Container:Plastic Leakproof Container or Sterile Stool Transport Vial
Causes for Rejection:Specimen contaminated with water or urine; specimen containing barium, oil, Metamucil, sample received in preservative, formed stool.
Contraindications:False negative test may occur if patient is on antibiotics.

Processing and Shipping

Specimen Processing:Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature. Must arrive within 24 hours.
Test Performed at or Referral Lab Infectious Diseases Diagnostic Laboratory   (Northland, Range, UMMC East Bank)


Reference Range:No fecal leukocytes seen.
Use:Differential diagnosis of diarrheal disease.

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