GI calculator & Index

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Truelove and Witts severity index

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GI calculator & Index
  • Bowel movements per day
  • Blood in stool
  • Pyrexia
    Defined as temperature ≥ 100.04°F (37.8°C)
  • Pulse > 90 bpm
  • Anemia
    Defined as hemoglobin ≤ 10.5 g/dL (105 g/L)
  • Erythrocyte sedimentation rate, mm/hr
Milda Moderate Severeb
1) Frequency of defection 4 Times or less Intermediate between mild and severe 6 Times or more
2) Bloody stool (-) or (+) (+++)
3) Feverc Absent 37.5°C or higher
4) Frequency of defection Absent 90/min or more
5) Frequency of defection Absent Hb 10g/dL or less
6) Frequency of defection Normal 30mm/h or more

a Rated ad "mild" when all 6 criteria are satisfied.

b Rated ad "severe" when criteria (1) and (2), and either of systemic symptoms (3) and (4) are satisfied, and at least 4 of the 6 criteria are satisfied.

Truelove, S.C.; Witts, L.J. Cortisone in ulcerative colitis: Final report on a therapeutic trial. Br. Med. J. 1955, 2, 1041-1048.