Positron emission tomography (PET) of a patient who has consumed the radiotracer fluorodeoxyglucose reveals tumors because
A) any radioisotope accumulates in tumor cells.
B) cancer cells accumulate fluorodeoxyglucose because they consume excessive amounts of glucose through aerobic glycolysis.
C) the fluorodeoxyglucose labels cells killed by the PET treatment.
D) the fluorodeoxyglucose labels only the normal tissue because cancer cells cannot metabolize glucose.
E) the fluorodeoxyglucose associates with the anti-tumor drugs being used for treatment.
Correct Answer:
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