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Midterm Review
Chapter 2
19
Health Care
Undergraduate 3
03/18/2015

Additional Health Care Flashcards

 


 

Cards

Term
what is energy
Definition
the ability to do work; radiation refers to energy that passes from one location to another and can have many manifestations
Term
how are electromagnetic waves classified
Definition
by frequency and wavelength
Term
high vs lower energy x-rays
Definition
higher energy has shorter wavelength and higher frequency
Term
to study radiation, the electromagnetic spectrum is divided into what two parts
Definition
ionizing radiation: x-rays, gamma rays, high-energy
non ionizing: low energy ultraviolet, visible, infared, micro, radio
Term
particulate radiation
Definition
alpha and beta particles
Term
alpha particles
Definition
heavy, two protons and two neutrons, large mass, less penetrating then beta
Term
beta particles
Definition
lighter, negative charge, greater penetration than alpha
Term
linear accelerator
Definition
produces high speed electrons for oncology, used to treat skin lesions and breast tissue
Term
what is a proton
Definition
positively charged part of atom, small mass, number=atomic number of an atom
Term
what are neutrons
Definition
neutral, same mass as proton
Term
equivalent dose (EqD)
Definition
measured in sieverts or rems, when you recieve various types of radiation, enables the calculation of effective dose
Term
effective dose
Definition
uses weighting factor to measure different types of radiation on specific body parts
Term
what type of biological damage can ionizing radiation cause
Definition
by ejecting electrons ionizing radiation can cause molecular change, cellular damage, and organic damage
Term
what are the 3 sources of ionizing radiation that humans are exposed to
Definition
natural and manmade and medical
Term
what are examples of natural radiation
Definition
terrestrial, cosmic, internal (radionuclides)
Term
what are examples of manmade radiation
Definition
air travel, nuclear fuel, atmospheric fallout from nuclear weapons, power plant accidents, medical radiation
Term
what is medical radiation
Definition
diagnostic and nuclear medicine procedures
Term
what are the 3 ways in which the radiation received by a patient may be expressed
Definition
ESE and glandular dose, bone marrow dose, gonadal dose
Term
how do you decrease ESE
Definition
reduce mAs and increase kVp
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