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CA 19-9 Levels - What is High Enough to Cause Concern for Prognosis?
Pancreatic Cancer | Last Active: Jul 27 1:38pm | Replies (34)Comment receiving replies
As I understand it 34 is a number that can naturally appear in ordinary people without pancreatic cancer. CA 19–9 of 15 should not be alarming but it should be monitored and tracked to see if the trend continues upward overtime. My CA 19–9 marker is at 59 and this has come down from about 1500 last year, which was a peak. I underwent chemotherapy and proton radiation therapy to bring it down from 1500 to 59. God bless you and good luck. 🙏🏼🌈💜🍀
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My understanding is that CA 19-9 of 15 means it is below threshold so (likely) no pan can. A reading decrease to 8 does not really mean anything. Nor, at least from what I can tell, does an increase to 16, or 17 - since one is still below the threshold for this test.
Now, if you have a test and it is 45, then your likelihood of pan can is high (other things can cause this, too), and if it increases in two months to 4500 it means something like the tumor is growing. If however, you have two more CA 19-9 tests over the next two months that come back at 20 and 22 ... it could mean ... well, you can see why it is not used much as a screening tool.