Table 4. Macroscopic assessment, thresholds of RBF, and urine output.
AssessmentScore
NMP assessment score during ex vivo NMP
Macroscopic assessment
  Grade I: excellent perfusion (global pink appearance)1
  Grade II: moderate perfusion (patchy appearance)2
  Grade III: poor perfusion (global mottled and purple
and black appearance)
3
RBF
  Threshold, ≥50 ml/min per 100g0
  Threshold, <50 ml/min per 100g1
Total urine output
  Threshold, ≥43 ml0
  Threshold, <43 ml1