GXMO Review Questions and Answers
100% Solved
Radiographic table movement - Trendelenburg (head lower)
- reverse trendelenburg
control console - located in control booth
- walls and windows designed for radiation protections
- lead glass
- concrete walls
- lead lining in tube housing
Fundamental radiation safety - minimize time
- maximize shielding
- maximize distance
Time - when applied to operator: minimize time you are exposed to radiation, never hold
patient during exam
,- when applied to patient: amount of time set for exam should be minimal, use technique chart
Shielding - when applied to operator: must remain in control booth or behind barrier
- when applied to patient: shielding used on gonadal areas
Distance - when applied to operator: as far away as possible from patient, behind barrier
- when applied to patient: distance of x-ray tube should be as far as possible from patient to
achieve an optimal image, predetermined techniques and distances must be utilized
ALARA - as low as reasonably achievable
fundamental safety - never stand in path of primary beam
- wear protective lead apparel
- stand as far from x-ray tube and patient as possible
- never hold patient during exam
- stand in control booth during exposure
- ensure all nonessential persons are outside of room
- ensure door is closed before taking exposure
,- always collimate bream to part of body
- use gonadal shielding on all children and persons of childbearing age
reduce unnecessary patient dose - eliminate unnecessary x-ray eliminations
- avoid repeat x-rays
- use proper collimation
- position patient correctly
- use area shielding
Matter anything that occupies space and has mass
Mass amount of matter in an object
Protons - positively charged
- reside in nucleus
Neutrons - no charge
- in nucleus
, Electron - negative charge
- orbits nucleus
Atoms may be - neutral ( same number of electrons and protons
- ionized (more or fewer electrons than protons)
Important elements in radiology - hydrogen, oxygen, calcium, iodine, barium
Energy - ability to do work
X-Ray machine - electrical energy --> electromagnetic (x-ray) and thermal (heat)
Electromagnetic radiation - isotropic (emitted equally in all directions)
X-Rays and visible light - travel in straight lines
- affect photographic emulsions
100% Solved
Radiographic table movement - Trendelenburg (head lower)
- reverse trendelenburg
control console - located in control booth
- walls and windows designed for radiation protections
- lead glass
- concrete walls
- lead lining in tube housing
Fundamental radiation safety - minimize time
- maximize shielding
- maximize distance
Time - when applied to operator: minimize time you are exposed to radiation, never hold
patient during exam
,- when applied to patient: amount of time set for exam should be minimal, use technique chart
Shielding - when applied to operator: must remain in control booth or behind barrier
- when applied to patient: shielding used on gonadal areas
Distance - when applied to operator: as far away as possible from patient, behind barrier
- when applied to patient: distance of x-ray tube should be as far as possible from patient to
achieve an optimal image, predetermined techniques and distances must be utilized
ALARA - as low as reasonably achievable
fundamental safety - never stand in path of primary beam
- wear protective lead apparel
- stand as far from x-ray tube and patient as possible
- never hold patient during exam
- stand in control booth during exposure
- ensure all nonessential persons are outside of room
- ensure door is closed before taking exposure
,- always collimate bream to part of body
- use gonadal shielding on all children and persons of childbearing age
reduce unnecessary patient dose - eliminate unnecessary x-ray eliminations
- avoid repeat x-rays
- use proper collimation
- position patient correctly
- use area shielding
Matter anything that occupies space and has mass
Mass amount of matter in an object
Protons - positively charged
- reside in nucleus
Neutrons - no charge
- in nucleus
, Electron - negative charge
- orbits nucleus
Atoms may be - neutral ( same number of electrons and protons
- ionized (more or fewer electrons than protons)
Important elements in radiology - hydrogen, oxygen, calcium, iodine, barium
Energy - ability to do work
X-Ray machine - electrical energy --> electromagnetic (x-ray) and thermal (heat)
Electromagnetic radiation - isotropic (emitted equally in all directions)
X-Rays and visible light - travel in straight lines
- affect photographic emulsions
