Test Code FATQUAL Fat, Qualitative, Stool
Methodology
Sudan IV Stain for Fat
Useful for detecting fat droplets in feces (suggestive of impaired absorption).
Performing Laboratory
Logan Health Medical Center Laboratory
Specimen Requirements
Specimen must arrive within 2 hours of collection.
Container/Tube: Clean, dry, leakproof
container(s)
Specimen Volume: Entire fresh stool
specimen-Specimen contaminated with water or urine is not
acceptable.
Collection Instructions:
Note:
- If specimen is collected in a bedpan or collection “hat”, patient should urinate into another container before stool specimen is collected.
- Do not collect specimen from toilet.
- Specimen in diaper is not acceptable. Stool material should be scraped into a clean, dry container. Pediatric patients with severe diarrhea may use a U-Bag collection system. Place U-Bag over urethra to prevent urine from contaminating specimen.
- Specimen source is required.
Reference Values
Neutral fats: ≤60 droplets/hpf
Fatty acids and soaps: ≤100 droplets/hpf
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
89125
Specimen Transport Temperature
Ambient