I would like to know if taking a PPI (Nexium) will alter the chromogranin A count?
October 17, 2015
Our Medical Director, Richard R.P. Warner MD, states that ALL PPI’s (example, Nexium) will alter CgA results and
should therefore be withheld for about 1 month prior to the chromogranin A (CgA) test. Zantac or Tagamet can be substituted during this…