Mock Exam- Part 1 Flashcards
What is the CR angle for the AP Oblique Projection- Judet Method?
0 Degrees
Where is the CR entrance point for the AP Internal Oblique Projection- Judet Method?
2 inches Inferior to the ASIS
What projections best demonstrates the coronoid process of the ulna?
AP Oblique Elbow, Medial Rotation
Which ribs are false ribs?
8-12
What forms the Anterior 1/5 of the acetabulum?
Pubis
What position best demonstrates the splenic flexure FREE of superimposition?
RPO
How many ribs SHOULD be visible above the diaphragm on a PA Chest?
10 (not 9)
Waters method (sinuses), the OML is placed at what angle to the IR?
37 degrees
Where does the CR enter for an AP Axial projection of the zygomatic arches?
1 inch above the Nasion
What position should be used to visualize the kidneys to demonstrate nephroptosis?
Erect Abdomen
What is another name for the 2nd cervical vertebra?
Axis
Which IVs and pedicles are demonstrated on an AP axial oblique projection of the C-Spine?
Farthest Side from the IR
The frontal bone articulates with which of the following?
Right and Left Parietals
Sphenoid
Temporal
Ethmoid
Right and Left Partetals
Sphenoid
Ethmoid
Where does the CR enter for an AP Pelvis?
2 inches above pubis symphysis
Which of the following is NOT to be performed on a trauma patient?
Danelius- Miller
Clements-Nakayama Method
Modified Cleaves Method
Modified Cleaves
The zygapophyseal joints are shown on what position for the C-Spine?
Lateral Position
What is perpendicular for the AP open mouth projection of the odontoid?
Tip of the mastoid and the upper incisors
The left IV of the C-spine are demonstrated on what projections?
AP Oblique Projection- RPO Position
PA Oblique Projection- LAO Position
How much rotation is needed for an AP oblique projection (RPO and LAO) of the C-Spine for visualization of the IV?
45 Degrees
Where is the CR directed for an AP lumbosacral spine?
Perpendicular to the level of the iliac crests
An AP oblique projection of the lumbar spine demonstrates the zygapophyseal joints. Where are they located in relation to the IR?
The Zygapophyseal joints Closest to the IR
What elbow projection demonstrates the coronoid process in profile?
Medial Oblique
What does the Stecher Method demonstrate?
Navicular (Scaphoid)
What does the lateral projection of the elbow demonstrate?
Olecranon Process
The AP projection of the humerus demonstrates?
Greater Tubercle
What fat pads are visible on the negative lateral elbow study?
Anterior and Posterior Fat Pads
Where are the petrous ridges projected for the parietoacanthial projection (Waters Method of the Sinuses?
Below the floor of the Maxillary Sinuses
What positioning line is perpendicular to the IR for the PA Axial projection of the Sinuses (Caldwell Method)?
**Check this- is Caldwell AP?*
Glabellomeatal Line
What is the CR angulation for the axiolateral projection Coyle Method for the elbow?
45 Degrees
Which of the following lie within the abdominal cavity?
Stomach
Kidneys
Liver
Rectum
Stomach
Kidneys
Liver
The CR for the left lateral decubitus position of the abdomen should be?
2 inches above the iliac crests
The shoulder girdle consists of which bones?
Clavicle and Scapula
Where does the CR enter for the AP projection of the shoulder?
1 inch inferior to the coracoid process
What positions demonstrate the sternum projected through the heart shadow?
PA Oblique, and RAO
The right side ribs are elongated on what positions?
AP Oblique RPO
PA Oblique LAO
What positions best demonstrate Osgood-Schlatter disease?
Ap and Lateral Knee Projections
Where is the esophagus in relation to the trachea?
Posterior
What is the sail sign that is visible on an infant chest radiograph?
The Thymus
Where is the top of the IR positioned for a PA Chest radiograph?
1 1/2 to 2 inches above the Shoulders
To demonstrate fluid in the pleural cavity, the patient must be placed so that the _________________ is down.
Affected side if down
What is the degree of angulation of the body for the PA oblique projection of the esophagus?
35 to 40 degrees
The patient should be NPO for how long before a stomach study?
8 hours
When performing an UGI series, the pyloric canal, duodenal bulb, and the c-loop are best demonstrated on which position?
PA Oblique and RAO
To evaluate the small intestines, barium may be given by:
Mouth
Rectally
Enteroclysis
All of the Above
Mouth
Rectally
Enterocylsis
All of Them
Which of the following projections demonstrates the rectosigmoid area when performing a barium enema?
AP Axial
PA Axial
Lateral
AP Axial
PA Axial
Lateral
All of them
What is demonstrated best when performing a double contrast Barium Enema in the right lateral decubitus position?
Medial side of the ascending colon
Lateral side of the descending colon
Surgical cholangiography images are usually performed with the patient in what positions?
AP and AP Oblique (RPO)
How many degrees is the patient rotated for an AP oblique projection of the urinary system?
30 degrees
How much (degrees) is the body rotated for an AP oblique projection when performing a cystourethrogram?
35 to 40 degrees for both male and female
What degree of body rotation should be used for an AP oblique projection of the stomach?
30 to 60 degrees
What projection would put the left kidney perpendicular to the IR?
AP Oblique LPO (Downside is perpendicular) (Upside is parallel- right)
What articulates with the cuboid out of the following?
Calcaneus
Talus
Medial Cuniform
Lateral Cuniform
Calcaneous
Lateral Cuniform
A fracture of the base of the first metacarpal is a?
Bennett’s Fracture
What projection should be utilized to best demonstrate the structural changes present in the longitudinal arch due to pathology?
Lateral Weight Bearing
What type of CR is required with a Merchant Method of the knee?
A Tangential CR
If the original intensity of the beam is 15 mGy^^a, at a 102 cm SID, What would the new intensity be if the SID is changed to 183 cm?
4.66
The SI unit for absorbed dose is?
G
What is the monthly dose limit to the embryo fetus for a pregnant technologist?
.5 mSv
45 mGy^^a resulting from 80 kVp at 15 mAs will produce an exposure rate of?
3 m/Gy^^a (how is this done?)
The doors to the radiographic room should contain what thickness of lead?
0.8 mm (1/32 inch)
Which of the following methods will reduce occupational exposure?
Increasing Collimation
Decreasing Collimation
Increasing the mAs by 15%
Decreasing the mAs by 15%
Decreasing Collimation (Why?)
Fluoroscopic protective drapes should contain how much mm Pb equivalency?
.25 mm Pb equivalency
how do most interactions with DNA macromolecules occur?
Indirectly
Which of the following types of tissues are the most sensitive to ionizing radiation?
Muscle Tissue
Adult Nerve Tissue
Brain Tissue
Epithelial Tissue
Epithelial Tissue
What acute radiation syndrome is also known as “Bone marrow syndrome” and the survival time shortens as the radiation dose increases?
Hemopoietic Syndrome
What is an example of high-LET radiation?
Alpha Particles
What is the whole body annual occupational effective dose limit?
50 mSv
What is the primary source of radiation exposure to diagnostic radiation personnel?
Comptom Scattering
What SI unit is used to measure the effective dose (EfD)?
Sieverts
Which of the following types of contrast should NOT be used on a patient with a suspected peforated bowel?
Gastroview
Isovue-200
Barium
Isovue-300
Barium
The legal doctrine of res ipsa loquitur translates to what phrase?
The thing speaks for itself
What is required when a patient is subjected to any type of invasive procedure?
Informed Consent
What is defined as an object, such as a door handle, that harbors pathogenic microorganisms and may serve as an agent of transmission of an infection?
Fomite
What age group (child) is often concerned only with what is going to be done to them at the moment?
Toddlers (1-3 years)
What is the most common means of spreading infection?
Human Hands
What systolic blood pressure indicates shock?
Systolic pressure UNDER 60 mmHg
What is the normal average rate of respiration for a healthy adult patient?
12-20 breaths/min
What is the simpler name derived from the more complex chemical name of a drug?
Generic Name
What should you do when a patient who is complaining of pain in the area of the left 4th and 5th metatarsals; however, the requisition asks for a left ankle exam?
Check with the referring physician
What is the total brightness gain of an image intensifier if the minification gain is 25 and the flux gain is 40?
1000
A grid error that causes a loss of density over the entire image and grid lines more pronounced on one side of the image?
Off-Center Error
A parallel circuit has 3 ohms, 2 ohms, and 5 ohms and a potential difference of 220 V. What is the current?
227 amps
Based on the Nyquist Theorem, in digital imaging at least ______________ the numbers of pixels needed to form the image must be sampled.
2 times
Multiple conversions occur in CR/PSP imaging; electrons to light, light to digital info, digital to analog signal, etc. This can result in a loss of ________ within the image.
Detail
Using a Fuji imaging system, you are radiographing a PA chest. The “S” number for this system should be at a range of 200-400 for an acceptable image. Your response results in an “S” number of 800. What is the best solution for repeating your image?
Double your mAs
What layer of the CR imaging plate sends light in a forward direction when released in the cassette reader?
Reflective
The data within the collimated area of an image produces a graphical representation of densities known as:
Histogram
The amount of patient tissue included in an image is known as:
Field of View
True or False
Digital images have a wider dynamic range compared to film screen.
True
True or False
Bit depth determines the contrast resolution of an image.
True
True or False
Spatial resolution does not depend on pixel size.
False
What are materials that absorb x-rays, resulting in an electrical charge?
Photoconductors
How many bits make up a byte?
8
A small area networked with a series of cables or wireless access points that allow computers to share information and devices on the same network is known as a:
LAN-Local area network
A PACS (Picture Archiving and Communication System) is considered this type of network?
Server Based Network
True or False
The larger the pixel, the greater the detail.
False
When the emission of light from a stimulated material is delayed (afterglow), this is called:
Phosphorescence
CR phosphor plates are most sensitive to?
Scatter Radiation
A lack of sufficient incoming data for the processing or an insufficient number of photons reaching the IR is known as:
Quantum Mottle
A binary number is also known as a?
Bit
