positions
a position where the patient is lying with their head lower than their feet
Trendelenburg
a patient must have their body part of interest____ to the IR
parallel
alara stands for
as low as reasonable achievable
This describes the path of the beam through the patient, specifically the enter and exit sites.
Projection
RPO
Right posterior oblique
a position when the patient's head is higher than their feet
fowler
typically, a _____ beam is needed when doing an x-ray to ensure the least amount of distortion
perpendicular
a dosimeter should be placed where?
on the collar
SID stands for what
Source to image distance
Mid-coronal
another word for when a patient is lying down
recumbent
a beam will "fan out" from the x ray tube is the simplified definition of what term?
divergence
primary controlling factor of receptor exposure
OID stands for what
Object to image distance
The device that responds to the ionizing radiation to create the radiographic image after it exits the patient
image receptor or IR
a position where the patient has their right chest on the board, and their left portion of their chest is angled away or off of the board
RAO
large focal spot
promotes radiation safety in adult medical imaging
Image Wisely
the ability of an imaging system to differentiate between two near-by objects
spatial resolution
anterior
a position when a patient is lying on the x ray table, with the left side of their back touching the table, and their right side is elevated off of the table
LPO
these are the controlling factors of what x ray principle:
SID
OID
Object-image receptor alignment
CR alignment and centering
Distortion
minimize radiation exposure in children
image gently
This controls the energy or "power" of your x ray beam
KvP
process by which bones form within the body
ossification