• In every case, the Laboratory  shall confirm quantitatively all the Markers  of the steroid profile before proceeding with the GC/C/IRMS analysis;  [Comment: This requirement does not apply if the Testing Authority  (or Results Management Authority , as applicable) has authorized the Laboratory  to proceed directly to GC/C/IRMS analysis without a need for a quantitative confirmation of the steroid Markers (for example, in cases of limited Sample volume).