Reading Is Fundamental
Well, support for Occam's Razor exists in the medical journals. Her cancer is growing and the gemcitabine is no longer working, would be my wager. I scoured the oncology journals and found this information: Finally, the change in CA 19-9 levels over a 4 week time period (“CA 19-9 velocity”) has been shown to be related to disease progression. Patients without disease progression were shown to have a slower change in CA 19-9 over a 4 week period (1 U/ml/4 weeks) as compared to those with disease progression (131 U/ml/4-weeks) ( P < 0.001) [ 31 ]. These studies suggest that a decrease in CA 19-9 levels during or after treatment are predictive of disease remission and whether a patient will respond to chemotherapy. From 3k to 8k in two weeks. Not good.