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Radiation in medication
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Created by
Joe Dobson
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Cards (25)
What is radiotherapy used for?
To treat
cancer
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What are medical tracers used for?
To
detect
problems inside the body
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What type of radiation can damage cells?
Ionizing radiation
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How does ionizing radiation affect DNA?
It can
mutate
our DNA
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What happens if cells receive a large enough dose of radiation?
They can be
killed
off completely
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What is radiation sickness?
Illness
from
large doses
of
radiation
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What are the symptoms of radiation sickness?
Vomiting,
tiredness
, and hair loss
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How can radiation be beneficial in medicine?
It can destroy
unwanted
cells like
cancer cells
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What is the process called that uses radiation to treat cancer?
Radiotherapy
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What are the two main methods of delivering radiation in radiotherapy?
External
and
internal
methods
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How do external sources deliver radiation?
By emitting
gamma rays
targeted at cancer
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What is the internal method of delivering radiation?
Placing a
radioactive
source
inside the body
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What type of radiation is usually used in the internal method?
Beta radiation
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Why do both radiotherapy techniques have side effects?
They can damage
healthy cells
in the body
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How do medical tracers work?
By tracking
radioactive isotopes
in the body
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How can radioactive isotopes be introduced into the body?
By
injection
or swallowing
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What is the purpose of tracking the movement of isotopes?
To check if organs are working
properly
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What radioactive isotope is mentioned for thyroid gland absorption?
Iodine-131
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Why are gamma rays preferred for medical tracers?
They are less harmful than
alpha
or
beta
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What is the ideal half-life for isotopes used in medical tracers?
As
short
as
possible
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What is the
risk-benefit
analysis
in
using
radiation
?
Weighing risks against benefits of radiation use
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Why is using medical tracers generally worth the risk?
They help diagnose
diseases
effectively
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Why is radiotherapy considered worth the side effects?
It can save a
person's
life
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Why might some people choose not to have radiotherapy?
If it only extends life
briefly
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What should viewers do if they found the video useful?
Like and subscribe
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