Question

a(n) ________ scan uses radioactive markers in the blood to monitor blood flow and metabolic activity via x - ray. a. pet b. ct c. tms d. eeg please select the best answer from the choices provided

Explanation:

PET (Positron - Emission Tomography) scans use radioactive tracers in the blood to monitor blood flow and metabolic activity via x - ray and other imaging techniques. CT (Computed Tomography) uses x - rays to create cross - sectional images but not radioactive markers in the blood for metabolic monitoring. TMS (Transcranial Magnetic Stimulation) is a non - invasive brain stimulation technique, not an imaging scan. EEG (Electroencephalogram) measures electrical activity of the brain, not blood flow and metabolic activity with radioactive markers.

Answer:

A. PET