Medical Imaging Flashcards
Lead-lined protective equipment works because:
A
It is heavy and keeps the radiology technologist in one place
B
It is durable and will last for many years
C
Lead is dense and prevents x-rays from passing through
D
Lead is porous so x-rays can pass right through
Lead is dense and prevents x-rays from passing through
A radiology technician is qualified to take X-rays, diagnose, and treat an injury.
TRUE
FALSE
FALSE
What is an oblique shot? A An image taken from below the body B An immunization given to people before international travel C An image of the side of the torso D An image taken from a different angle that might show structures that can't be seen from the top or side
An image taken from a different angle that might show structures that can’t be seen from the top or side
A radiologic technician works with different patients with different injuries each day.
TRUE
FALSE
TRUE
Posterior means: A Towards the midline of the body B Away from the center of the body C The back of the body D Near the feet
The back of the body
The three most common X-ray views are: A Lateral, Angle, and PA B Anterior, Angle, and Oblique C Lateral, Side, and Posterior D Oblique, Lateral, and PA or AP
Oblique, Lateral, and PA or AP
An AP image is: A An image used only in a research setting B Taken from the front of the body looking towards the back C Taken from the side of the body D Taken from the posterior of the body
Taken from the front of the body looking towards the back
Contrast Material
A substance used to enhance the visibility of structures or fluids within the body in medical imaging.
Pacemaker
An electrical device that maintains a normal heart rhythm by stimulating the heart muscle.
Radiography
An examination of any part of the body for diagnostic purposes by means of x-rays.
Stent
A tubular support placed temporarily inside a blood vessel, canal, or duct to aid healing or relieve an obstruction.
Lumbar
Refers to the lower part of the back.
Benign
Means not cancerous.
Barium
A mixture that is swallowed to permit radiological examination of the stomach or intestines.
Angiogram
An X-ray photograph of blood or lymph vessels.
Endoscopy
The use of an illuminated optical instrument to visualize the interior of the body and its organs.
Malignant
Cancerous cells, also called a tumor, able to grow into surrounding tissue, spread to other parts of the body and destroy normal cells.
The use of an illuminated optical instrument to visualize the interior of the body and its organs. A radiography B barium C contrast material D endoscopy
endoscopy
An X-ray photograph of blood or lymph vessels. A benign B barium C contrast material D angiogram
angiogram
If a patient is unconscious, a lead apron is not needed during X-rays.
TRUE
FALSE
FALSE
The tibia and fibula are: A The two bones in the lower arm B Located in the lower leg C Bones in the skull D The two bones in the upper leg
Located in the lower leg
Cancerous cells, also called a tumor, able to grow into surrounding tissue, spread to other parts of the body and destroy normal cells. A malignant B barium C contrast material D lumbar
malignant
The ideal distance between an X-ray tube and an X-ray cassette is: A 6 feet B 4 inches C 4 feet D 40 inches
40 inches
X-rays have a: A Frequency faster than visible light B Frequency slower than visible light C Wavelength longer than visible light D Wavelength the same as radio waves
Frequency faster than visible light
Frequency refers to: A X-ray colors B How fast waves of energy travel C The brightness of visible light D The size of waves of energy
How fast waves of energy travel
A mixture that is swallowed to permit radiological examination of the stomach or intestines. A radiography B barium C radiography D contrast material
barium
The doctors in the ER decide which injury to treat first when a patient arrives in the ER.
TRUE
FALSE
TRUE
The safe distance from an x-ray source is: A 16 feet B 32 feet C 6 feet D 40 inches
6 feet
ROYGBIV refers to: A The electromagnetic spectrum B Visible light C X-rays D Radio waves
Visible light
What purpose does carbonated, or bubbly, liquid play in a fluoroscopic procedure?
A
The doctors and radiologists use it to sneak medications into the patients.
B
It helps to relax the patient before the procedure.
C
It settles the stomach after the barium is ingested.
D
The bubbles in the liquid will help create air pockets in the patient’s system which allows the doctor to see the barium more clearly.
The bubbles in the liquid will help create air pockets in the patient’s system which allows the doctor to see the barium more clearly.
The only person who needs protection in a room where X-rays are being taken is the patient.
TRUE
FALSE
FALSE
If a doctor orders an exam of the "UGI", he means an exam of: A The lower intestine B The lungs and heart C The esophagus and stomach D The upper arm
The esophagus and stomach
X-ray tubes: A Can't be seen B Burn out C Are regular light bulbs D Are cool to the touch
Burn out
A solid material that collects or produces an electric current is: A A cathode B An electrode C A vacuum D An electromagnetic spectrum
An electrode
Barium is a heavy metal and has a very agreeable taste.
TRUE
FALSE
FALSE
Barium is used for some X-rays. Which of the following is NOT a reason that barium is used in X-rays? A It is a chalky substance B It doesn’t dissolve in water C It can be swallowed D It is a dense material
It is a chalky substance
A vacuum is: A An X-ray bucky B An empty space C A television tube D A light bulb
An empty space
What is the function of a fluoroscope?
A
It takes continuous images to create a video of internal organs.
B
It takes still images of soft tissues like muscles and ligaments.
C
It is used to check for cavities and tooth decay.
D
It takes continuous images to detect brain activity.
It takes continuous images to create a video of internal organs.
Sound travels faster in air than in water, because water molecules are packed more densely and slow the sound waves down.
TRUE
FALSE
FALSE
Another term for ultrasound is phonograph.
TRUE
FALSE
FALSE
An ultrasound uses sound waves to show: A Radiation B The light spectrum C Soft tissues D Heart rate
Soft tissues
Sound frequencies are measured in cycles per second, called a Hertz. Which of the following is not within the human range for hearing? A 10,000 Hertz B 14 megahertz C 60 Hertz D 580 Hertz
14 megahertz
The following people are in need of either an X-ray or an ultrasound. For whom would an X-ray be a safe option?
A
A war veteran with a metal plate in his head
B
A 78-year-old man with a pacemaker
C
A 17-year-old basketball player with a suspected broken leg
D
A pregnant woman
A 17-year-old basketball player with a suspected broken leg
Ultrasounds can only produce two-dimensional images.
TRUE
FALSE
FALSE
An ultrasound gathers information by: A Bouncing radiation off of objects B Bouncing sound waves off of objects C Sending sound waves through objects D Collecting radiation from objects
Bouncing sound waves off of objects
An echocardiogram is: A A sonogram of the heart, used to diagnose heart disease B An X-ray of the heart, used to diagnose heart disease C A hearing test D A test of the strength of the ear drum
A sonogram of the heart, used to diagnose heart disease
Which of the following statements about sound is true? A Sound and light travel at the same rate B Light travels more slowly than sound C Sound travels more slowly than light D Sound and light are part of the same spectrum
Sound travels more slowly than light
In an ultrasound, the images are called: A Echoes B Sound pulses C Probes D Radials
Echoes
A biopsy is: A The removal of cells to test for disease B An injection of medication C A treatment for killing cancer cells D The surgical removal of a tumor
The removal of cells to test for disease
A dental X-ray emits .1 mSv. A CT scan of the brain emits 2.2 mSv. A chest CT is 7 mSv. Living on Earth exposes each person to 3 mSv. A one-way flight across the country is .02 mSv. A patient is concerned about radiation exposure. She realizes that in the past year, she has had 4 dental X-rays, a chest CT, 2 brain CTs, and she took two round trip flights across the country. How much radiation has she been exposed to this year? A 12.88 mSv B 148.8 mSv C 14.88 mSv D 12.04 mSv
14.88 mSv
Which of the following is not a risk of overexposure to radiation? A Skin cancer B Asthma C Loss of fingers D Severe burns
Asthma
Before entering a surgical environment, the doctor and everyone else assisting must be in sterile scrubs, gloves, and protective gear.
TRUE
FALSE
TRUE
Once suspicious cells are removed from a patient, they are sent to be examined by a: A X-ray technician B Pathologist C Cardiologist D Pulmonary radiologist
Pathologist
Jane had two chest CTs this year at 7 mSv each. Simply living on Earth exposed her to 3 mSv. The maximum radiation exposure for health professionals is 50 mSv per year. How much radiation has Jane been exposed to this year? A 40 mSv B 12.88 mSv C 12.04 mSv D 17 mSv
17 mSv
Pulmonary means: A Having to do with the lungs B Having to do with the heart C Related to blood pressure D Having to do with a patient's pulse
Having to do with the lungs
Inflammation in the air passages: A Causes irregular heartbeat B Makes digestion uncomfortable C Causes heart attacks D Causes asthma
Causes asthma
Health professionals who assist during a biopsy with a CT running are:
A
Not exposed to any radiation
B
Covered with lead and safe from radiation exposure
C
Too far from the radiation source to be concerned
D
Exposed to some radiation
Exposed to some radiation
Endoscopy uses a combination of X-ray technology and cameras.
TRUE
FALSE
FALSE
CT images are especially helpful because they:
A
Show brain activity in great detail
B
Are easily manipulated to recreate a body from just using skeletal remains
C
Generate incredibly detailed, three-dimensional images of the bones
D
Generate detailed two-dimensional images of the bones
Generate incredibly detailed, three-dimensional images of the bones
It is impossible to perform surgery while a patient is having a CT scan.
TRUE
FALSE
FALSE
Arthroscopy is superior to X-ray when diagnosing: A Damaged cartilage or inflammation in a joint B Severe migraines C A head injury D A broken bone
Damaged cartilage or inflammation in a joint
A patient has a possible brain injury. Which of the following would prevent her from having an MRI?
A
She had a baby last year
B
She has a surgical metal clip in her intestines
C
She has a titanium replacement hip
D
She has been exposed to too much radiation this year
She has a surgical metal clip in her intestines
A patient has headaches that have not been explained by examination. Her doctor is going to order an imaging test. Which one is the doctor likely to order? A An MRI B A fluoroscopy C A CT D An ultrasound
An MRI
When an ER doctor is in need of a high-quality, three-dimensional image in a short amount of time, he will order: A An arthroscopic exam B A CT scan C An endoscopic exam D An MRI
A CT scan
An ultrasound is the preferred modality for examining the brain.
TRUE
FALSE
FALSE
Because of the powerful magnets used for an MRI, patients must remove all of the following items, or if unable to remove because of surgical insertion, must avoid MRI altogether, The only exception would be: A Titanium replacement parts B A pacemaker C Metal clips or screws from a previous injury D Metal jewelry
Titanium replacement parts
Which of the following statements about an MRI is true?
A
An MRI can take up to 45 minutes and the patient must stay completely still.
B
The MRI can be dangerous because it alters the makeup of our bodies at a cellular level.
C
An MRI technologist remains right next to the patient during the MRI scan.
D
The process of getting a proper MRI image usually takes less than 30 seconds.
An MRI can take up to 45 minutes and the patient must stay completely still.
What does an MRI use to create images of the density of organs and tissues inside the body? A Gamma rays B Sound waves C Radiation D Magnetism
Magnetism
An MRI is the most effective modality for getting quality images of bone and other very dense tissues.
TRUE
FALSE
FALSE
Because of the extended length of time in a small, enclosed area, some patients have a hard time relaxing during an MRI.
TRUE
FALSE
TRUE
Which of the following is true about MRI? A It is safe for a pregnant woman B It uses sound waves C A patient with a titanium hip must avoid it D It does not emit radiation
It does not emit radiation
Jan is a radiologist and has her degree and CNMT certification. She is qualified to work as a nuclear medicine technologist indefinitely without further schooling or continued education.
TRUE
FALSE
FALSE
With the help of the PET scanner and the radioactive material that the patient ingested, a technologist can:
A
Use magnetic rays to capture images of the organs
B
Determine the level of white blood cells in the patient
C
Only see major movements of the body in the scanner
D
See both the structure of a particular organ as well as how it is functioning
See both the structure of a particular organ as well as how it is functioning
Once a hospital employee reaches the limit for radiation exposure, he or she: A Must stop working for a time B Must find a new career C Collects a bonus D Most likely has cancer
Must stop working for a time
A radiopharmaceutical isotope: A Is a type of sound wave B Is a cause of many types of cancer C Delivers radiation to the body D Absorbs radiation from the body
Delivers radiation to the body
Nuclear medicine uses: A CEUs B Sound waves C Gamma rays D X-rays
Gamma rays
EXTRA
- Determines if a patient’s bone density is improving or declining
- Bone density refers to the hardness of the bone (according to young)
- Bones are dense and don’t allow x-rays to penetrate them
- It’s density
