I am not aware of NPP or Mast causing skewed E2 results with the ECLIA analysis, only tren so you can get regular ECLIA test and have accurate results
But, NPP will throw off ECLIA testosterone results (high) because nandrolone is an altered form of testosterone that ECLIA cannot determine the difference between the two.
As to prolactin I do not know what analytical equipment they use for this analysis but I have never heard of AAS throwing off prolactin analysis results.