ARRT EXAM 1-5 COMPLETE ANSWERS 100% CORRECT (LATEST 2025 / 2026 )

1. Damage to the cells is the earliest appearance of radiationdamage
to the skin.: Basal cells
Basal cells are stem cells that mature in the process of rising to the epidermalsurface.
2. ALARA: As Low As Reasonably Achievable
3. What treatment delivery method spares healthy tissue the LEAST?: 2D
IMRT,VMAT and SBRT are examples of conformal tx.techniquesthatspare healthytissue
4. For a member of the general public, the maximum exposure of radiationshould not
exceed .: 100mrem/year
1 rem/yr
5. For those who work with radiation, the max dose limit for adults for fullbody is .:
5,000 mrem/year
5rem/yr
6. For those who work with radiation, the max dose limit for adults for lensof the eye
exposure is .: 50,000 mrem/year
50rem/yr
7. For an undeclared pregnant radiation worker, the max dose of expo-sure remains , but
once declared the max dose exposure drops to over the time of the pregnancy.:
Undeclared:5,000mrem/year (50rem/yr)
Declared: 500mrem/time of pregnancy (.5 rem/pregnancy)
8. The imaging size of the CT scanner is most dependent on
: scanned field of view
9. Where do medulloblastomas typically metastasize to?: Bone via the blood-stream (pelvis,
long bone and spine)