Med Term CHP 20

A medical technologist who specializes in ultrasound is a

sonographer

 

cause a photographic plate to darken

x-rays

Which of the following will appear blackest on an x-ray?

lungs

Ionization is a chemical process that

creates charged particles

Sonography

safe for tissues

Which of the following is not a type of radiation?

delta particles

X-rays can

kill cancer cells

The medical specialty that uses radioactive substances to diagnose and treat disease

nuclear medicine

________ emit high-speed particles and energy-containing rays from the interior of their matter as they disintergrate.

radionuclides

A physician who specializes in diagnostic radionuclide scanning procedures is a

radiologist

Which of the following structures is the most radiopaque?

bones

If a substance permits passage of most x-rays it is said to be

radiolucent

If a substance absorbs most of the x-rays it is exposed to, it is said to be

radiopaque

X-rays travel ________ until they hit an object and then _______.

straight lines: scatter

The spontaneous emission of energy in the form of particles or rays coming from the interior of a substance

radioactivity

Which of the following is an example of sonography?

echocardiography

an initial x-ray is taken without contrast and then used to remove obscuring shadows

digital subtraction angiography

Magnetic resonance imaging is best as visualizing

soft tissues

An in vitro procedure that combines the use of radioactive chemicals and antibodies to detect hormones or drugs in a patient’s blood.

radioimmunoassay

detects areas of high uptake in bone tissue

radioactive bone scan

During __________ a radiologist will perform a procedure while using fluoroscopy t

interventional radiology

To visualize blood vessels, _______ is typically used as a contrast agent.

iodine

During ___________ cholangiography, a needle is inserted through the skin and into the liver to inject contrast.

percutaneous transhepatic

_____ uses magnetic fields and radiowaves rather than x-rays

MRI

________ records blood flow velocity

doppler ultrasound

The time it takes for a radioactive substance to lose half of its radioactivity by disintegration is the

half life

In _________ study of the lungs, a radiopharmaceutical is given intravenously and then used to image the capillaries of the lung.

perfusion study

A ___________ can be used to detect the distribution of radiopharmaceuticals in the body.

gamma camera

Technetium-99m emits

gamma rays

During _________ an x-ray image of the spinal cord is obtained after a contrast is injected.

myelography

A series of radiographs that utilizes both a radiopaque and radiolucent contrast medium is called

double constrast study

The process of obtaining an images using a radioisotope is

scintigraphy

In a _________, x-rays are beamed at a patient’s body from multiple angles and recorded by a computer to create multiple cross-sectional images.

CT scan

In vitro means______ while in vivo means ______.

test tube; body

During _________ an x-ray image of the fallopian tubes and endometrial cavity is obtained after a contrast is injected.

hypersalpinography

A thallium scan might be performed to identify

ares of cardiac damage

In lymphoscintigraphy, a radiotracer is injected ________ where it will then move into the lymphatic system

under the skin

A patient swallows barium sulfate and then radiographs are produced at timed intervals to visualize the esophagus, stomach and duodenum.

upper GI series

In _________ study of the lungs, a radiolabeled gas or aerosol is inhaled into the lungs and then used to image the alveoli of the lung.

ventilation study

Thyroid scans can detect all of the following EXCEPT

level of thyroid hormone produced

During _________ an x-ray image of the bile ducts is obtained after a contrast is injected.

cholangiography

A multidetector CT scanner

produces more images

_________ uses high-frequency sound waves that bounce off body tissues and are then recorded to give information about the anatomy of an internal organ.

sonography

Sound waves are created by a

transducer

The contrast agent used most frequently during an MRI is

gandolinium

A radionucleotide is intravenously injected and then traced to identify areas of high and low metabolism.

positron emission tomography

_______ uses low-dose x-rays to visualize breast tissue

mammography

During ___________ cholangiography, a contrast is injected directly into the bile duct without having to open the abdomen.

endoscopic retrograde

Barium sulfate

is radiopaque

Which of the following is NOT a perk of using digital imaging techniques over traditional film?

utilize magnetic waves instead of radioactive materials

To increase visibility of soft tissues like blood vessels, ________ may be injected to increase their radiopaqueness.

contrast agent

The rate of absorption of a radiopharmaceutical into an organ or tissue is referred to as

uptake

The first node to receive lymph drainage from a tumor is the

sentinel node

During _________ an x-ray image of the renal pelvis and urinary tract is obtained after a contrast is injected.

pyelography

During _________ an x-ray image of the heart and/or blood vessels is obtained after a contrast is injected into the blood stream.

angiography

A drug or chemical that has been combined with a radionuclide is called a

radiopharmaceutical

magnetic resonance imaging

MRI

functional MRI

fMRI

multiple-gated acquisition

MUGA

single photon emission computed tomography

SPECT

angiography

Angio

barium enema

BE

cervical spine

C-spine

posteroanterior

PA

computed tomography

CT

echocardiography

ECHO

decubitus

Decub

fluorodeoxyglucose

18F-FDG

thoracic spine

T-spine

anteroposterior

AP

Barium

Ba

Lateral

LAT

digital imaging

DI

digital subtraction angiography

DSA

positron emission tomography

PET

lumbar spine

L-spine

radiofrequency ablation

RFA

endobronchial ultrasound

EBUS

endoscopic ultrasonography

EUS

radioactive iodine uptake

RAIU

upper gastrointestinal series

UGI

gadolinium

Gd

ventilation-perfusion scan of the lungs

V/Q scan

small bowel followthrough

SBFT

lumbosacral films

LS films

chest x-ray

CXR

multidetector CT scanner

MDCT

positron emission tomography - computed tomography

PET-CT

intravenous pyelogram

IVP

magnetic resonance angiography

MRA

endobronchial ultrasound-guided transbronchial needle aspiration

EBUS-TBNA

positron emission tomographymagnetic resonants imaging

PET-MRI

ultrasound

US

What does the suffix -gram mean?

record

What does son/o mean?

sound

What does pharmaceut/o mean?

drug

what does vitr/o mean

glass

What is the combining form that means: \n x-rays

radi/o

What does the prefix ultra- mean?

beyond

What does the prefix ultra- mean?

echo-