Deck 50: Assisting With Diagnostic Imaging

Question 1

The purpose of intensifying screens is to reduce the amount of x-ray exposure necessary for an accurate view.

Answer 1

True

Question 2

A patient is exposed to an average amount of radiation during an MRI procedure.

Answer 2

False

Question 3

A lateral projection takes an image from either the patient's right or left side.

Answer 3

True

Question 4

Digital radiography uses a special type of high-speed x-ray film.

Question 5

A parent, rather that a professional radiographer, should hold a child in position for an x-ray examination.

Question 6

Cardiac catheterization allows visualization of the endocardium of the atria and ventricles.

Question 7

X-ray film boxes should be stored flat with the expiration date visible.

Question 8

A barium enema is performed before a colonoscopy to ensure the best visualization of the colon.

Question 9

Nuclear medicine scans provide clear, detailed images of anatomic structures.

Question 10

Controlling exposure time is an important factor in protecting patients from radiation.

Question 11

Patients with cardiac pacemakers cannot have an MRI scan.

Question 12

A thallium scan is a nuclear medicine procedure that helps the physician visualize the condition of the myocardium during a stress test.

Question 13

The potential formation of cataracts is a concern for radiographers who work extensively with fluoroscopy.

Question 14

Indications of serious complications from iodine dye injection include flushing and nausea.

Question 15

A chest x-ray film typically is taken in a lateral oblique position.

Question 16

All radiographic examinations requiring the use of iodine uptake should be scheduled before a lower GI series.

Question 17

In the lateral recumbent position, the patient is sitting up on the right or left side.

Question 18

In a frontal projection, the coronal plane of the body or body part is parallel to the film plane.

Question 19

The collimator uses a shielded device to limit the amount of radiation exposure to the patient.

Question 20

The source-to-image distance is the distance from the gantry to the film.

Question 21

An open MRI does not always provide image quality equal to that produced by conventional units.

Question 22

The amount of exposure to radiation is directly linked to the length of time spent in the radiation field.

Question 23

CT studies are noninvasive, painless examinations that typically do not require any special patient preparation.

Question 24

The _____________ is a fluoroscopic examination of the esophagus, stomach, and duodenum, involving oral administration of barium sulfate as a contrast medium.

A)CT scan
B)MRI
C)Lower GI scan
D)Upper GI scan

Question 25

Patients with diabetes should take their insulin before examinations that require NPO preparation to prevent hyperglycemia.

Question 26

Blood cells and blood-producing cells are very sensitive to radiation exposure.

Question 27

Buttons and thick seams in clothing may cause an artifact on an x-ray film.

Question 28

The part of the sonography machine that is in contact with the patient is called the:

A)gantry
B)cathode
C)transducer
D)table

Question 29

______________ is the direct observation of the x-ray image in motion.

A)CT scan
B)MRI
C)IVU
D)Fluoroscopy

Question 30

The radioisotopes used in nuclear medicine cause the patient to become radioactive; this requires special precautions for family members.

Question 31

Patients on long-term steroid therapy are at increased risk for developing osteoporosis.

Question 32

The _______________ is the fluoroscopic examination of the colon, usually involving rectal administration of barium sulfate as a contrast medium.

A)CT scan
B)MRI
C)Lower GI scan
D)Upper GI scan

Question 33

A badge for monitoring the radiation exposure of personnel is called a:

A)gantry
B)dosimeter
C)transducer
D)roentgen

Question 34

One of the best tools for detailed studies of the organs of the chest and abdomen is either a chest x-ray film or a flat plate of the abdomen.

Question 35

The computed x-ray imaging technique that provides axial and three-dimensional scans is commonly called a(n):

A)CT scan
B)MRI
C)sonogram
D)upper GI scan

Question 36

The doughnut-shaped part of a CT scanner that surrounds the patient and gathers imaging data is called a:

A)gantry
B)contrast medium
C)transducer
D)table

Question 37

__________ is an imaging method in which a magnetic field and radiofrequency pulses are used to create computer images of bones and soft tissue in multiple planes.

A)CT scan
B)Ultrasound
C)MRI
D)IVU

Question 38

_______________ is an imaging method in which radioactive materials are injected into the body or ingested to provide information about the function of organs and tissues.

A)Nuclear medicine
B)Ultrasound
C)MRI
D)IVU

Question 39

PET scans frequently are used to assess the spread of cancerous tumors.

Question 40

Which of the following terms means "toward the head"?

A)Cephalic
B)Inferior
C)Caudal
D)Posterior

Question 41

If the physician orders a plantar x-ray film, the technician would take an image of the:

A)palm of the hand
B)superior side of the foot
C)inferior aspect of the heel
D)sole of the foot

Question 42

Which statement is true about cell sensitivity to radiation exposure?

A)Older cells are more sensitive than younger ones.
B)Cells that divide and multiply rapidly are more sensitive than those that replicate slowly.
C)Cells that have a slower metabolic rate are more sensitive.
D)Highly complex cells are the most sensitive to radiation effects.

Question 43

Which medical term means "front" or "in front of"?

A)Superior
B)Inferior
C)Anterior
D)Posterior

Question 44

The radiopaque substance used to enhance the visibility of soft tissues in imaging studies is called a(n) __________.

Question 45

Which statement is true about the somatic effects of radiation exposure?

A)The low doses associated with radiography produce long-term effects that may not be apparent for decades.
B)X-ray exposure must be limited because of the immediate effects it can have.
C)Somatic effects are a problem only for radiologists.
D)Radiation exposure affects everyone in the same way.

Question 46

What is the most frequent concern of patients scheduled for CT studies?

A)Exposure to x-rays
B)Anxiety about entering the confined space of the tube
C)Iodine allergies
D)Magnetic pull on metal objects

Question 47

What plane divides the body into two equal right and left halves?

A)Midsagittal
B)Frontal
C)Transverse
D)Crosswise

Question 48

The plane that divides the body into anterior and posterior portions is the _____ plane.

A)sagittal
B)frontal
C)midsagittal
D)transverse

Question 49

How would you explain an IVU procedure to a patient?

A)It uses iodine as a contrast medium and aids in the diagnosis of kidney stones.
B)No special patient prep is required.
C)It is performed with an MRI machine.
D)Iodine is used as a contrast medium, and the uterus is visualized..

Question 50

What word means "farther away" or "farthest from" the trunk or the point of origin of a body part?

A)Proximal
B)Distal
C)Superficial
D)Deep

Question 51

You are concerned about the safety of working in a facility that performs x-rays studies on site.Which statement is true about your risk of radiation exposure as an employee in the facility?

A)The x-ray room collects radiation over time.
B)Scatter radiation is present at all times.
C)The only time a radiation hazard exists is during the x-ray exposure itself.
D)People consistently exposed to scatter radiation have a shortened life span.

Question 52

The medical term meaning "toward the midline of the body" is:

A)medial
B)lateral
C)ventral
D)dorsal

Question 53

Which of the following cells are most sensitive to radiation exposure?

A)Neurons
B)Muscles
C)Hepatocytes
D)Epidermal cells

Question 54

Why is it important to ask patients scheduled for an IVP if they are allergic to shellfish?

A)Food allergies can alter the results of certain diagnostic tests.
B)Fish allergies are a contraindication when barium contrast material is used.
C)Iodine creates a bitter taste in patients allergic to shellfish.
D)Shellfish contain high levels of iodine, which is the contrast used in an IVP.

Question 55

Which plane of the body is a horizontal plane?

A)Sagittal
B)Frontal
C)Midsagittal
D)Transverse

Question 56

You have a patient scheduled for an MRI.What should you include in the patient education?

A)It cannot be done if the patient is allergic to iodine.
B)The MRI uses advanced radiation technology to provide the physician with a multiple view of the area.
C)A very loud tapping noise is heard throughout the procedure.
D)The patient does not have to enter the machine, unlike with a CT scan.

Question 57

Which statement is true of an UGI?

A)It is performed with an iodine contrast medium.
B)Patient prep includes the use of a cathartic.
C)It is a fluoroscopic examination.
D)It is an MRI procedure.

Question 58

Diverticulosis may be diagnosed with which procedure?

A)UGI
B)LGI
C)Abdominal sonography
D)MRI with iodine dye

Question 59

What medical term means "toward or nearest the trunk of the body"?

A)Proximal
B)Distal
C)Superficial
D)Deep

Question 60

To indicate that something lies nearer the surface, the term ________ is used.

A)proximal
B)distal
C)superficial
D)deep

Question 61

__________ is a procedure in which a catheter is used to open or widen a blood vessel.

Question 62

An example of __________ is a cardiac catheterization with visualization.

Question 63

A fluoroscopic examination of a joint in which a contrast medium is used to allow visualization of the soft tissue components is a(n) __________.

Question 64

The radioactive substance administered to a patient for nuclear medicine imaging procedures is called a(n) __________.

Question 65

A(n) __________ is a moving grid device that prevents scatter radiation from fogging an x-ray film.

Question 66

__________ ultrasonography can be used to detect vascular disease, such as atherosclerosis and venous thrombosis.

Question 67

Another name for an x-ray examination is __________.

Question 68

AP stands for __________.

Question 69

A(n) __________ involves a lumbar puncture and injection of an iodine contrast medium.

Question 70

A(n) __________ is also called a barium enema.

Question 71

A(n) __________ substance is not easily penetrated by x-rays and appears light on radiographs.

Question 72

For a(n) __________, an iodine dye is given IV to allow visualization of the renal system.

Question 73

The frontal projection in which the patient is prone, or facing the x-ray film or image receptor, is called __________.

Question 74

A(n) __________ may appear on x-ray film if the film is handled improperly.

Question 75

The radiographic view in which the coronal plane of the body or body part is parallel to the film plane (AP or PA) is a(n) __________ projection.

Question 76

The radiographic view in which the sagittal plane of the body or body part is parallel to the film is called __________.

Question 77

Radioactive tracers are used in __________ to provide information about the function of organs and tissues.

Question 78

A(n) __________ should be worn close to the collar and outside a lead apron to pick up radiation exposure.

Question 79

__________ is a therapeutic technique performed by the radiologist in which a catheter is used to block a blood vessel and prevent hemorrhage.

Question 80

A(n) __________ substance is easily penetrated by x-rays and appears dark on radiographs.