Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
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Case Report

Volume 6, Number 5, May 2015, pages 232-234

Marked Variation in Serum Chromogranin A Levels in a Patient on Chronic Omeprazole Therapy


Figure 1.
Figure 1. Level of chromogranin A measured over a course of 10 months.


Table 1. Chromogranin A Levels in Relation to Omeprazole Therapy
Date of lab collectionSerum chromogranin A level in ng/mLOmeprazole therapy
December 201318On omeprazole
January 2014126On omeprazole
February 2014128On omeprazole
March 2014182On omeprazole
April 2014126On omeprazole
May 2014138On omeprazole
June 2014242 weeks off omeprazole
September 201418On omeprazole