Stool Indciators

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* Urine Indicators
* Weights and Measures

COMPONENT

SPECIMEN

CONVENTIONAL UNITS

FACTOR

RECOMMENDED SI UNITS

Bile, Qualitative

Random stool

Negative in adults Positive in children Z Z Negative in adults Positive in children

FAT

Stool, 72 h

  • Total Fat

<5 g/24 hr 1 <5 g/d

10-25% of dry matter 0.01 Mass fraction: 0.1-0.25 of dry matter
  • Neutral Fat

1-5% of dry matter 0.01 0.01-0.05 of dry matter
  • Free Fatty Acids

5-13% of dry matter 0.01 0.05-0.13 of dry matter
  • Combined Fatty Acids

5-15% of dry matter 0.01 0.05-0.15 of dry matter

Nitrogen, Total

Stool, 24 h

10% of intake 1-2 g/24h 0.01 71.39 Mass fraction 0.1 of intake 71-143 mmol/d

Trypsin Activity

Random, fresh stool

Positive (2+ to 4+) Z Positive (2+ to 4+)

UROBILINOGEN

  • Qualitative

Random stool

Positive Z Positive
  • Quantitative

Stool, 24 h

40-200 mg/24 h 80-280 Ehrlich units/24 hr 1.693 68-339 lmol/d