Janet,
My tests were performed at Labcorp. The cost is around $200.00 +/-.
I had it done twice so far, my reading was around 6. Over 15 is abnormal.
My onc feels that every 3 months is necessary. This is a handy tool for the oncs to monitor the rise and fall of HER2 levels in the blood.
For more detailed info on the test, go to our Tests page. There is a powerpoint presentation which details the test.
HER2 Tests Page
Hugs
Christine