A technologist acquires an x-ray of the pelvis using 100 kilovoltage peak (kVp), 10 milliampere-seconds (mAs), 40 inches source-to-image distance (SID), and no grid. The exposure level is good, but the contrast is too low. If the exam is repeated using a 16:1 grid, what new technique should be employed?

Photon absorption within the body occurs as the result of:

A radiographer can best reduce the amount of scatter radiation from reaching the receptor by:

The air-gap technique reduces the amount of scatter radiation reaching the IR because:

Select the following that affects the enzyme rate/activity

The sum of all chemical reactions is called ___

In the lab, what is the substrate of the catalase test?

Cool temperatures speed molecules up. Hot temperatures slow molecules down 

If a catalase tests does not produce bubbles, what can be assumed?

Enzymes are highly specific for the reaction they catalyze and not used up in the reaction