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Medical Imaging Flashcards

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1
Q

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

A

Lead is dense and prevents x-rays from passing through

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2
Q

A radiology technician is qualified to take X-rays, diagnose, and treat an injury.
TRUE
FALSE

A

FALSE

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3
Q 
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
A

An image taken from a different angle that might show structures that can’t be seen from the top or side

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4
Q

A radiologic technician works with different patients with different injuries each day.
TRUE
FALSE

A

TRUE

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5
Q 
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
A

The back of the body

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6
Q 
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
A

Oblique, Lateral, and PA or AP

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7
Q 
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
A

Taken from the front of the body looking towards the back

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8
Q

Contrast Material

A

A substance used to enhance the visibility of structures or fluids within the body in medical imaging.

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9
Q

Pacemaker

A

An electrical device that maintains a normal heart rhythm by stimulating the heart muscle.

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10
Q

Radiography

A

An examination of any part of the body for diagnostic purposes by means of x-rays.

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11
Q

Stent

A

A tubular support placed temporarily inside a blood vessel, canal, or duct to aid healing or relieve an obstruction.

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12
Q

Lumbar

A

Refers to the lower part of the back.

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13
Q

Benign

A

Means not cancerous.

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14
Q

Barium

A

A mixture that is swallowed to permit radiological examination of the stomach or intestines.

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15
Q

Angiogram

A

An X-ray photograph of blood or lymph vessels.

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16
Q

Endoscopy

A

The use of an illuminated optical instrument to visualize the interior of the body and its organs.

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17
Q

Malignant

A

Cancerous cells, also called a tumor, able to grow into surrounding tissue, spread to other parts of the body and destroy normal cells.

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18
Q 
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
A

endoscopy

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19
Q 
An X-ray photograph of blood or lymph vessels.
A
benign
B
barium
C
contrast material 
D
angiogram
A

angiogram

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20
Q

If a patient is unconscious, a lead apron is not needed during X-rays.
TRUE
FALSE

A

FALSE

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21
Q 
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
A

Located in the lower leg

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22
Q 
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
A

malignant

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23
Q 
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
A

40 inches

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24
Q 
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
A

Frequency faster than visible light

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25
Q 
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
A

How fast waves of energy travel

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26
Q 
A mixture that is swallowed to permit radiological examination of the stomach or intestines.
A
radiography 
B
barium 
C
radiography 
D
contrast material
A

barium

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27
Q

The doctors in the ER decide which injury to treat first when a patient arrives in the ER.
TRUE
FALSE

A

TRUE

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28
Q 
The safe distance from an x-ray source is:
A
16 feet
B
32 feet
C
6 feet
D
40 inches
A

6 feet

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29
Q 
ROYGBIV refers to:
A
The electromagnetic spectrum
B
Visible light
C
X-rays
D
Radio waves
A

Visible light

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30
Q

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.

A

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.

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31
Q

The only person who needs protection in a room where X-rays are being taken is the patient.
TRUE
FALSE

A

FALSE

32
Q 
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
A

The esophagus and stomach

33
Q 
X-ray tubes:
A
Can't be seen
B
Burn out
C
Are regular light bulbs
D
Are cool to the touch
A

Burn out

34
Q 
A solid material that collects or produces an electric current is:
A
A cathode
B
An electrode
C
A vacuum
D
An electromagnetic spectrum
A

An electrode

35
Q

Barium is a heavy metal and has a very agreeable taste.
TRUE
FALSE

A

FALSE

36
Q 
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
A

It is a chalky substance

37
Q 
A vacuum is:
A
An X-ray bucky
B
An empty space
C
A television tube
D
A light bulb
A

An empty space

38
Q

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.

A

It takes continuous images to create a video of internal organs.

39
Q

Sound travels faster in air than in water, because water molecules are packed more densely and slow the sound waves down.
TRUE
FALSE

A

FALSE

40
Q

Another term for ultrasound is phonograph.
TRUE
FALSE

A

FALSE

41
Q 
An ultrasound uses sound waves to show:
A
Radiation
B
The light spectrum
C
Soft tissues
D
Heart rate
A

Soft tissues

42
Q 
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
A

14 megahertz

43
Q

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

A 17-year-old basketball player with a suspected broken leg

44
Q

Ultrasounds can only produce two-dimensional images.
TRUE
FALSE

A

FALSE

45
Q 
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
A

Bouncing sound waves off of objects

46
Q 
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

A sonogram of the heart, used to diagnose heart disease

47
Q 
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
A

Sound travels more slowly than light

48
Q 
In an ultrasound, the images are called:
A
Echoes
B
Sound pulses
C
Probes
D
Radials
A

Echoes

49
Q 
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
A

The removal of cells to test for disease

50
Q 
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
A

14.88 mSv

51
Q 
Which of the following is not a risk of overexposure to radiation?
A
Skin cancer
B
Asthma
C
Loss of fingers
D
Severe burns
A

Asthma

52
Q

Before entering a surgical environment, the doctor and everyone else assisting must be in sterile scrubs, gloves, and protective gear.
TRUE
FALSE

A

TRUE

53
Q 
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
A

Pathologist

54
Q 
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
A

17 mSv

55
Q 
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
A

Having to do with the lungs

56
Q 
Inflammation in the air passages:
A
Causes irregular heartbeat
B
Makes digestion uncomfortable
C
Causes heart attacks
D
Causes asthma
A

Causes asthma

57
Q

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

A

Exposed to some radiation

58
Q

Endoscopy uses a combination of X-ray technology and cameras.
TRUE
FALSE

A

FALSE

59
Q

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

A

Generate incredibly detailed, three-dimensional images of the bones

60
Q

It is impossible to perform surgery while a patient is having a CT scan.
TRUE
FALSE

A

FALSE

61
Q 
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
A

Damaged cartilage or inflammation in a joint

62
Q

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

A

She has a surgical metal clip in her intestines

63
Q 
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
A

An MRI

64
Q 
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

A CT scan

65
Q

An ultrasound is the preferred modality for examining the brain.
TRUE
FALSE

A

FALSE

66
Q 
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
A

Titanium replacement parts

67
Q

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.

A

An MRI can take up to 45 minutes and the patient must stay completely still.

68
Q 
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
A

Magnetism

69
Q

An MRI is the most effective modality for getting quality images of bone and other very dense tissues.
TRUE
FALSE

A

FALSE

70
Q

Because of the extended length of time in a small, enclosed area, some patients have a hard time relaxing during an MRI.
TRUE
FALSE

A

TRUE

71
Q 
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
A

It does not emit radiation

72
Q

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

A

FALSE

73
Q

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

A

See both the structure of a particular organ as well as how it is functioning

74
Q 
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
A

Must stop working for a time

75
Q 
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
A

Delivers radiation to the body

76
Q 
Nuclear medicine uses:
A
CEUs
B
Sound waves
C
Gamma rays
D
X-rays
A

Gamma rays

77
Q

EXTRA

A
  • 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

Health Science (16 decks)

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