STOOL
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TYPICAL REFERENCE INTERVALS |
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COMPONENT |
SPECIMEN |
CONVENTIONAL UNITS |
FACTOR |
RECOMMENDED SI UNITS |
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Bile, Qualitative |
Random stool |
Negative in adults Positive in children |
¯ ¯ |
Negative in adults Positive in children |
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FAT |
Stool, 72 h |
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<5 g/24 hr |
1 |
<5 g/d |
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10-25% of dry matter |
0.01 |
Mass fraction: 0.1-0.25 of dry matter |
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1-5% of dry matter |
0.01 |
0.01-0.05 of dry matter |
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5-13% of dry matter |
0.01 |
0.05-0.13 of dry matter |
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5-15% of dry matter |
0.01 |
0.05-0.15 of dry matter |
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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 |
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Trypsin Activity |
Random, fresh stool |
Positive (2+ to 4+) |
¯ |
Positive (2+ to 4+) |
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UROBILINOGEN |
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Random stool |
Positive |
¯ |
Positive |
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Stool, 24 h |
40-200 mg/24 h 80-280 Ehrlich units/24 hr |
1.693 |
68-339 µmol/d |
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