PSA Test with Long-term serial monitoring?

[baw1955]

PSA can be checked with or without "Long-term serial monitoring". LabCorp mistakenly ordered the one with "Long-term serial monitoring", then reversed after talking to my URO's office (at my request). When is "Long-term serial monitoring" the correct PSA test?

From LabCorp's website: "This test is intended for use as an aid in the management of patients following surgical or medical treatment for prostate cancer. Values obtained with different assay methods should not be used interchangeably in serial testing. It is recommended that only one assay method be used consistently to monitor each patient's course of therapy."