Blood tests for cancer detect the presence of ____.

Name: Blood tests for cancer detect the presence of ____.
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Question

Blood tests for cancer detect the presence of ____. ​

Quizplus · Accepted Answer

Blood tests for cancer commonly detect the presence of tumor markers, which are substances produced by cancer cells or by the body in response to cancer. This includes PSA for prostate cancer and CA-125 for ovarian cancer. Blood tests do not directly detect cancer cells or DNA, although they can indirectly signal their presence through elevated levels of tumor markers.

Blood Tests for Cancer Detect the Presence of ____