Table 7.3-1. Modified Marshall scoring system

Organ system

Score

0

1

2

3

4

Respiratory (PaO2/FiO2)

>400

301-400

201-300

101-200

≤101

Renal (serum creatinine, micromol/L)a

≤134

134-169

170-310

311-439

>439

Cardiovascular (systolic blood pressure, mm Hg)b

>90

<90

Fluid responsive

<90

Not fluid responsive

<90, pH <7.3

<90, pH <7.2

A score of ≥2 in any system defines the presence of organ failure.

a The score for patients with preexisting chronic renal failure depends on the extent of further deterioration of baseline renal function. No formal correction exists for a baseline serum creatinine ≥134 micromol/L or ≥1.4 mg/dL.

b Off inotropic support.

Source: Gut. 2013;62(1):102-11.