Chromogranin A: Change in Test Methodology

Effective 3/17/08, the referral laboratory that performs Chromogranin A will change test methodologies. Because of differences in the analytical components of the two kits, test results obtained with each cannot be used interchangeably. To facilitate a comparison and rebaselining of individual patient results, specimens received for Chromogranin A will be tested with both the old and new kits. Chromogranin A concentrations as determined by each kit will be reported until March 16, 2008 or until the supply of old kits is exhausted.

Questions may be addressed to Martha Holm at 356-8593.