Module 20: Radiology and Nuclear Medicine Flashcards
with regard to patient positioning, the abbreviation debut stands for
lying down
-lucent
to shine
tom/o
to cut
_____ substances are those that absorb most of the x-rays they are exposed to
radiopaque
a _____ gram is a record obtained by using sound waves to create an image of body organs
sono
x-ray imaging of the renal pelvis and urinary tract is called
pyelography
the ability of x-rays to cause disruption and rearrangement within a substance that previously neutral particles become charged particles is called
ionization
interventional radiologist perform invasive diagnostic and therapeutic procedures usually under ______ guidance
computed tomography
a monitoring device designed to detect and record the amount of radiation exposure is called a
film badge
what x-ray characteristic permits x-ray beams to be directed accurately at a tissue site?
they travel in straight line
what procedure cannot be used with pacemakers or metallic implants?
MRI
what ultrasound imaging procedure allows for visualization of blood flow in moving structures?
doppler studies
what procedure detects blood flow in the brain?
functional MRI
what procedure detects blood flow in the brain?
functional MRI
an in ____ test traces the amount of radioactive substances inside a living organism
vitro
a synonym for radionuclide is
radioisotope
what kind of radioactivity emitted by radionuclides has the greatest penetrating ability and the most ionizing power?
gamma rays
what diagnostic study uses a injected radioactive tracer and a computer to create a three-dimensional image based on a composite of many views
single-photon emission computed tomography
the rate of absorption of a radionuclide into an organ or tissue is termed
uptake
a _____ is an in vitro procedure that combines radioactive chemicals and antibodies to detect certain proteins (such as hormones and drugs) in the blood
radioimmunoassay
in _____, radiopharmaceutical is inhaled to obtain a lung scan
ventilation studies
______ is most commonly used radionuclide in diagnostic imaging, and it is often used in myocardial perfusion imaging studies
technetium-99m
radioactive isotopes injected for detection by a gamma camera are
radio tracers
in a thallium scan, the radioactive isotope is injected intravenously to observe its absorption by
cardiac muscle
this scan is used to detect the motion of the heart wall muscle
multiple-gated acquisition scan
a ______- is a device that detects gamma rays emitted from radiopharmaceuticals
gamma camera
attaching a radionuclide to a chemical and following its path in the body is called
tracking
attaching a radionuclide to a chemical and following its path in the body is called
tracking
in ____ test is one in which something is measured or performed in a laboratory, often a test tube
vitro
radiopharmaceutical drugs can be used to generate an image by mapping their distribution and rate of absorption in the body because they emit
gamma rays
during an ultrasound imaging study, the patient lies on a table while the monographer puts the ____ on or near the skin
transducer
______ is the contrast agent used for a lower GI series, administered with an enema
barium
what contrast medium is usually injected into a vein or body part or space to assist in x-ray visualization of the body part, organ, or space?
iodine compound
in ______, a radiopharmaceutical is given intravenously to obtain a lung scan
perfusion studies
lengthening or straightening a limb is called
extension
the medical term for lying face down
prone
moving the body part away from the body of the midline is called
abduction
turning a body part outward is called
eversion
the medical term for lying-in the back
supine
moving the body part toward the body or midline is called
adduction
