TAKE this simple test – all you need is just a small sample of blood to find out if you have cancer.” Oh? music to all our ears – what a relief! No probing, prodding, and poking around with our bodies, subjecting it to sometimes uncomfortable procedures to detect cancer early. In addition, the cost seems reasonable enough...or so we think.
Wake up! Does the ideal blood/serum tumour marker test exist? The ideal test is such that the test result is only raised when the specific malignant tumour is present; preferably indicating the part of the body in which it is growing; can be correlated with the size of the tumour; responds rapidly to changes in the tumour size; is easy and cheap to measure using laboratory tests.