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HE4 and glycoprotein in bloodstream
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HE4 and glycoprotein in bloodstream

An HE4 result gives an indication of the amount of a secreted glycoprotein. If a tumor measured by a PET/CT scan shrinks (and the ovarian cancer has regressed), how long does it take for bloodstream to reflect the change? For example, let's say, HE4 is 200. Let's say the patient receives a treatment that shrinks the tumor right away. How long does it take for the HE4 number to decrease? Since this glycoprotein is still in the bloodstream, doing the test too soon will not reveal the change.
242604_tn?1328124825
Hi There
that is a great question.
I would say you should wait three weeks before rechecking the level
best wishes
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