Question

In order to protect her patient from excess radiation when getting an X-ray, a technician makes some adjustments to the machine. What might the technician adjust? Check all that apply.

the color of the X-ray

the intensity of the X-ray

the distance the X-ray device is from the patient

the amount of time the patient is exposed to the X-ray

Answer 1

Select:
- the intensity of the X‑ray — yes (lowering intensity reduces dose)
- the distance the X‑ray device is from the patient — yes (dose falls with distance, inverse‑square law)
- the amount of time the patient is exposed to the X‑ray — yes (shorter exposure → less dose)

Not: the color of the X‑ray — X‑rays don’t have a visible “color” and that isn’t used to control dose.