Amazingly, blood tests now show that her tumor markers have dropped to the normal range.

The failed test turned out to be the result of a tumor marker.

The level of one or more tumor markers is moderately above normal.

The level of one or more tumor markers is high.

Blood tests to check the levels of tumor markers in your blood.

A high level of a specific tumor marker may mean that a certain type of cancer is present in the body.

Tests done on blood or other body fluids can find tumor markers.

And tumor markers often help the doctor track a person's response to treatment.

"The tumor markers are better than they've been in a year," he says.

CA-125 is used as a tumor marker, which means the test can help show if some types of cancer are present.