TABLE XI

Adequate Sensitivity Ramifications of the UF Adjustment to the AET Applied to a Medical Device. Is Method Sensitivity Adequate to Achieve the Adjusted AET?a

# of Devices Required per DayAET (µg/mL)LoD (µg/mL)bIs the LoD ≤ the Adjusted AET?
No UFUF = 2UF = 5UF = 10
11200.05YesYesYesYes
21200.05YesYesYesYes
41200.05YesYesYesYes
81200.05YesYesYesYes
101200.05YesYesYesNo
  • a Abbreviations: UF, uncertainty factor; AET, analytical evaluation threshold; LoD, limit of detection.

  • b Taken as 0.05 µg/mL, within the capability of many optimized chromatographic screening methods.