Mock 1 Flashcards
An artifact caused by magnetic fields is called:
a.) pincushion distortion
b.) vignetting
c.) barrel distortion
d.) S distortion
d.) S distortion
A nosocomial infection is a:
a.) upper respiratory infection
b.) type of rhinitis
c.) infection acquired in a hospital
d.) infection acquired at a large gathering
c.) infection acquired in a hospital
Collimation systems equipped with positive beam limitation must be accurate to within _____________% of the SID.
a.) 4
b.) 3
c.) 5
d.) 2
b.) 3
A decrease in kvp will result in which of the following:
1.) a decrease in photon energy
2.) an increase in average filtration
3.) a decrease in receptor exposure
4.) an increase in beam penetrability
5.) a 15% increase in mas
a.) 1, 2, 3, 4 and 5
b.) 1, 2 and 3 only
c.) 2 and 3 only
d.) 1, 3 and 5 only
e.) 1 and 3 only
e.) 1 and 3 only
In the xray circuit, which transformer does voltage travel through first?
a.) mutual induction transformer
b.) step up transformer
c.) autotransformer
d.) step down transformer
c.) autotransformer
Sources of natural background radiation contributing to whole body radiation dose include:
1.) dental xrays
2.) terrestrial radionuclides
3.) internal radionuclides
a.) 1, 2 and 3
b.) 1 and 2 only
c.) 1 only
d.) 2 and 3 only
d.) 2 and 3 only
A particular radiograph was produced using 12 mas and 85 kvp with a 16:1 ratio grid. The radiohraph is to be repeated using an 8:1 ratio grid. What should be the new milliampere seconds value?
a.) 8
b.) 3
c.) 6
d.) 10
a.) 8
In which of the four major quadrants of the abdomen would the cecum be found?
a.) right upper quadrant (RUQ)
b.) left lower quadrant (LLQ)
c.) left upper quadrant (LUQ)
d.) right lower quadrant (RLQ)
d.) right lower quadrant (RLQ)
A radiograph that has densities that are very different from each other:
a.) has many shades of gray
b.) has low contrast
c.) has high contrast
d.) has long scale contrast
c.) has high contrast
Immature cells are referred to as:
1.) undifferentiated cells
2.) stem cells
3.) genetic cells
a.) 1 and 2 only
b.) 1 only
c.) 1, 2 and 3
d.) 2 and 3 only
a.) 1 and 2 only
Fog seen on a radiographic image is primarily the result of:
a.) Photoelectric interactions
b.) classical interaction
c.) compton interactions
d.) coherent interactions
c.) compton interactions
A loss of brightness around the edge of the fluoroscopic image caused by the curve of the photocathode is :
a.) noise
b.) pincushion appearance
c.) vignetting
d.) magnification
c.) vignetting
When the ASIS to tabletop measurement is between 19 and 24 cm, the CR angulation for an AP knee is:
a.) 7 degrees
b.) 5 degrees caudad
c.) 0 degrees
d.) 5 degrees cephalad
c.) 0 degrees
Which of the following exams requires restriction of the patients diet?
1.) UGI
2.) abdominal survey
3.) IVP
a.) 1, 2 and 3
b.) 1 and 3 only
c.) 1 only
d.) 1 and 2 only
b.) 1 and 3 only
A line voltage compensator is incorporated into the primary circuit of a digital radiographic unit to:
a.) maintain a constant voltage coming into the circuit
b.) control the desired speed of the anode
c.) compensate for variations mAs timer
d.) provide the desired filament charge
a.) maintain a constant voltage coming into the circuit
Which of the following contributes significantly to the exposure of the radiographer?
a.) compton scattered photons
b.) electrons
c.) positrons
d.) compton scattered electrons
a.) compton scattered photons
The medial malleolus is part of the:
a.) calcaneus
b.) tibia
c.) fibula
d.) talus
c.) fibula
The normal range for adult systolic blood pressure is:
a.) 120-140
b.) 60-80
c.) 100-120
d.) 80-100
c.) 100-120
The SID indicator must be within ________% of the actual SID.
a.) 1
b.) 10
c.) 2
d.) 5
c.) 2
An increase in total filtration of the xray beam will decrease:
a.) IR exposure
b.) image quality
c.) the average energy of the xray beam
d.) beam HVL
e.) IR exposure
e.) IR exposure
Establishing a 20 minute maximum wait time for a procedure is considered:
a.) patient comfort
b.) threshold of acceptability
c.) patient satisfaction
d.) personell performance
b.) threshold of acceptability
Which of the following is (are) considered low-LET radiation?
1.) xrays
2.) alpha particles
3.) gamma rays
a.) 1 and 3 only
b.) 2 and 3 only
c.) 2 only
d.) 1 only
a.) 1 and 3 only
As kvp increases, scatter radiation will:
a.) remain unchanged
b.) increase because of more compton interaction
c.) decrease beacuase of less photoelectric interaction
d.) decrease because of less compton interactions
b.) increase because of more compton interaction
What are the most radiosensitive white blood cells in the human body?
a.) lymphocytes
b.) neutrophils
c.) granulocytes
d.) eosinophils
a.) lymphocytes
The normal range for adult pulse rate is:
a.) 80-100 beats per minute
b.) 60-100 beats per minute
c.) 100-120 beats per minute
d.) 40-60 beats per minute
b.) 60-100 beats per minute
Where is the CR centered for the left lateral decubitus projection of the abdomen?
a.) at the level of the iliac crest
b.) 2 inches above the iliac crest
c.) 2 inches below the iliac crest
d.) xiphoid process
b.) 2 inches above the iliac crest
A radiograph of an AP abdomen demonstrates elongation of the left iliac wing and narrowing of the right iliac wing. Which one of the following positioning errors produced this outcome?
a.) rotation to the left (LPO)
b.) left hip was internally rotated more than the right hip
c.) rotation to the right (RPO)
d.) CR off center to the left
a.) rotation to the left (LPO)
A radiographer who performs an xray examination on a patient without the patients consent, or after the patient has refused the examination, may be liable for:
a.) battery
b.) libel
c.) assault
d.) slander
a.) battery
Irradiation of water molecules within the body and thier resulting breakdown is termed:
a.) proliferation
b.) repopulation
c.) epilation
d.) radiolysis (direct effect)
d.) radiolysis (direct effect)
Appropriate scatter radiation control methods include which of the following?
1.) tight collimation
2.) lead masking at the edge of the exposure field
3.) appropriate use of a grid
4.) increasing FOV
5.) using an air gap method
a.) 1, 2, 3 and 5 only
b.) 2, 3 and 5 only
c.) 1, 2, 3, 4 and 5
d.) 1, 2 and 4 only
a.) 1, 2, 3 and 5 only
An autotransformer is used to control which aspect of the xray circuit electrical supply?
a.) resistance
b.) rectification
c.) power
d.) voltage
d.) voltage
As a waves wavelength increases, its frequency
a.) it depends on the type of EMR
b.) decreases
c.) stays the same
d.) increases
b.) decreases
Stochastic/probabilistic effects of radiation are those that:
1.) have a threshold
2.) may be described as “all or nothing” effects
3.) are late effects
a.) 1 and 2 only
b.) 2 and 3 only
c.) 1, 2 and 3
d.) 1 only
b.) 2 and 3 only
The third metacarpal of the hand articulates with the:
a.) hamate
b.) capitate
c.) scaphoid
d.) lunate
b.) capitate
An increase in the image size of an object compared to its true, or actual size is called:
a.) minification
b.) sharpness distortion
c.) size distortion
d.) shape distortion
c.) size distortion
Anatomic structures that readily transmit xrays:
a.) are called radiolucent
b.) have a high effective atomic number
c.) have a high probability for photoelectric effect
d.) are called radiopaque
a.) are called radiolucent
The ASRT document that defines the radiographers role is the:
a.) standard of care
b.) legal standards
c.) standards of ethics
d.) practice standards
d.) practice standards
Patients right include the following:
1.) the right to refuse treatment
2.) the right to confidentiality
3.) the right to possess ones medical records
a.) 1, 2 and 3
b.) 1 only
c.) 1 and 2 only
d.) 1 and 3 only
c.) 1 and 2 only
What is the CR angulation for an AP axial projection of the cervical spine?
a.) 20-30 degrees cephalad
b.) 15-20 degrees caudad
c.) 15-20 degrees cephalad
d.) perpendicular
c.) 15-20 degrees cephalad
How much should the leg be flexed for a lateral projection of the knee?
a.) 90 degrees
b.) 70 degrees
c.) 20 to 30 degrees
d.) 10 to 20 degrees
c.) 20 to 30 degrees
Using the hip localization method, the femoral neck can be found:
a.) 1-2” distal and 3-4” medial to ASIS
b.) 3-4” distal to ASIS
c.) 1-2” superior and 3-4” medial to pubic symphisis
d.) 1-2” medial and 3-4” distal to ASIS
d.) 1-2” medial and 3-4” distal to ASIS
Which of the following are classified as high let radiation?
1.) alpha particles
2.) gamma rays
3.) xrays
a.) 1 only
b.) 3 only
c.) 1, 2 and 3
d.) 2 only
a.) 1 only
The type of shock associated with pooling of blood in the peripheral vessels is classified as:
a.) hypovolemic
b.) septic
c.) cardiogenic
d.) neurogenic
d.) neurogenic
Factors that decrease xray absorption include:
a.) increased tissue density
b.) increased tissue thickness
c.) increased xray beam quality
d.) increased atomic number
c.) increased xray beam quality
For an AP sacral image, the:
1.) patient should empty the bladder and colon before the procedure
2.) CR is angled 15 degrees cephalically
3.) ASISs are positioned at equal distance to the imaging table
4.) hips and knees are flexed
a.) 2 and 3 only
b.) 1, 2, 3 and 4
c.) 1, 2 and 3 only
d.) 1 only
c.) 1, 2 and 3 only
The heart is located in the anterior chest at the level of:
a.) the thymus gland
b.) T5-8
c.) T2-5
d.) the arch of the aorta
b.) T5-8
A patient arrives in radiology with a metal foreign body in the palm of the hand. Which of the following hand routines should be performed on this patient to confirm the location of the foreign body?
a.) PA and lateral in extension projections
b.) PA and lateral in flexion projections
c.) PA and fan lateral projections
d.) PA and gaynor hart method
a.) PA and lateral in extension projections
Fluid that collects in the pleural cavity is termed:
a.) pneumoconiosis
b.) chronic obstructive pulmonary disease (COPD)
c.) pleural effusion
d.) pneumonia
c.) pleural effusion
All of the following statements are true regarding the administration of a barium enema to a patient with colostomy, except:
a.) the drainage pouch should be retained unless a fresh one can be provided
b.) the colostomy tip or catheter should be selected by the radiologist
c.) the dressing should be removed and disposed of
d.) the patient should not be permitted to insert the colostomy tip
d.) the patient should not be permitted to insert the colostomy tip
What is the angle between the OML and the plane of the IR for the parietoacanthial (waters) projection?
a.) 15-20 degrees
b.) 42 degrees
c.) 37 degrees
d.) 55 degrees
c.) 37 degrees
How is the primary beam affected when increasing the tube filtration?
a.) increase in the proportion of higher energy xrays
b.) increase in the number of xray photons
c.) increase in the speed of the xray photons
d.) increase in the proportion of lower energy xrays
a.) increase in the proportion of higher energy xrays
A radiograph of the lumbar spine is produced using automatic exposure control (AEC). The exposure results in optimal contrast but low receptor exposure. What is the ideal way to increase the receptor exposure?
a.) decrease density setting
b.) increase density setting
c.) decrease grid ratio
d.) increase kvp
b.) increase density setting
local anasthetics are likely to be used in all of the following radiographic exams except:
a.) lower extremity arteriography
b.) arthrography
c.) postoperative or t tube cholangiography
d.) myelography
c.) postoperative or t tube cholangiography
Which of the following are stages of acute radiation syndrome?
a.) prodromal stage
b.) latent stage
c.) manifest illness stage
d.) all of the above
d.) all of the above
Amorpheus selenium is used as the:
a.) photoconductor for indirect capture DR Imaging
b.) photodetector for indirect capture DR Imaging
c.) photoconductor for direct capture DR imaging
d.) photodetector for direct capture DR imaging
c.) photoconductor for direct capture DR Imaging
Calculate the total repeat rate: 1500 total images, 220 repeats, 50 repeats were for positioning, 20 were for techincal factors
a.) 4.6%
b.) 19.3%
c.) 14.6%
c.) 14.6%
A radiographer who discloses confidential information to unauthorized individuals may be found guilty of:
a.) invasion of privacy
b.) defamation
c.) libel
d.) slander
a.) invasion of privacy
Which projection of the ankle best demonstrates the distal tibiofibular joint?
a.) lateromedial ankle
b.) AP projection
c.) mortise view
d.) AP obliue with 45 degree rotaton
d.) AP oblique with 45 degree rotation
A grid usually is used in which of the following circumstances?
1.) when radiographing a large or dense body part
2.) when using high kilovoltage
3.) when a lower patient dose is required
a.) 1, 2 and 3
b.) 1 only
c.) 1 and 2 only
d.) 3 only
c.) 1 and 2 only
Flat panel detectors for fluoroscopic imaging can be the:
a.) cesium iodide amorphus silicon indirect capture detector
b.) amorphus selenium direct capture detector
c.) amorphus silicon direct capture detector
d.) a and b
d.) a and b
Distance and xray beam quantity or intensity share what kind of relationship ?
a.) inverse
b.) direct
a.) inverse
For a lateral projection of the forearm, the elbow should be flexed:
a.) 90 degrees
b.) 90-120 degrees
c.) 120 degrees
d.) 45 degrees
a.) 90 degrees
Amorphus silicon is used as the:
a.) photoconductor for indirect capture DR imaging
b.) photodetector for indirect capture DR imaging
c.) photoconductor for direct capture DR imaging
d.) photodetector for direct capture DR Imaging
b.) photodetector for indirect capture DR imaging
Types of secondary radiation barriers include:
1.) the control booth
2.) lead aprons
3.) the xray tube
a.) 1, 2 and 3
b.) 1 and 2 only
c.) 2 and 3 only
d.) 2 only
a.) 1, 2 and 3
At what dose does hematopoietic syndrome begin?
a.) 1 Gy (100 rad)
b.) 100 Gy (10000 rad)
c.) 0.1 Gy (10 rad)
d.) 10 Gy (1000rad)
a.) 1 Gy (100 rad)
A measurement of the efficiency of an image receptor in converting xray exposure to a quality image describes:
a.) MTF
b.) dynamic range
c.) DQE
d.) FOV
c.) DQE
The __________ includes levels of accuracy, sensitivity, and specificicity of diagnosis and should include items such as the number of xrays taken per exam and the amount of radiation per exam.
a.) adverse event
b.) diagnostic reference level
c.) threshold of acceptability
d.) sentinel event
c.) threshold of acceptability
Which of the following is (are) possible long term somatic effects of radiation?
1.) nausea and vomiting
2.) carinsogenesis
3.) leukemia
a.) 2 and 3 only
b.) 1, 2 and 3
c.) 1
d.) 1 and 2 only
a.) 2 and 3 only
The normal average rate of respiration for a healthy adult patient is:
a.) 5 to 7 breaths/minute
b.) 8 to 12 breaths/minute
c.) 12 to 20 breaths/minute
d.) 20 to 30 breaths/minute
c.) 12 to 20 breaths/minute
Foreshortening can be caused by:
a.) the radiographic object being placed at an angle to the IR
b.) insuffiecient distance between the focus and the IR
c.) excessive distance between the object and the IR
d.) excessive angle of the tube to the IR
a.) the radiographic object being placed at an angle to the IR
Which of the following is the “prep phase” that occurs prior to mitosis?
a.) prophase
b.) metaphase
c.) interphase
d.) anaphase
c.) interphase
Organizations that are not accredited: (choose all that apply)
a.) can only treat self paying patients
b.) will lose medicaid/medicare reimbursements
c.) lose their residency programs
d.) cannot get malpractice insurance
e.) cannot treat pediatric patients
b.) will lose medicaid/medicare reimbursements
c.) will lose their residency programs
d.) cannot get malpractive insurance
A decrease in brightness at the lateral edges of the image in called:
a.) veiling glare
b.) barrel distortion
c.) S distortion
d.) vignetting
d.) vignetting
For a transthoracic lateral projection of the humerus, the epicondyles should be positioned:
a.) 30 degrees oblique to the IR (medial rotation)
b.) perpendicular to the IR
c.) parallel to the IR
d.) 45 degrees oblique to the IR (medial rotation)
b.) perpendicular to the IR
The AP oblique projection, RPO position of the chest corresponds to and essentially produces the same image as the ____________ oblique projection, _________ position.
a.) AP, LPO
b.) PA, LAO
c.) PA, RAO
b.) PA, LAO
When a patient with an arm injury needs help undressing, the radiographer should,
a.) always cut clothing away from the injured arm
b.) always remove clothing from the left arm first
c.) remove clothing from the uninjured arm first
d.) remove clothing from the injured arm first
c.) remove clothing from the uninjured arm first
A lateral knee radiograph that is over rotated toward the IR can be recognized by which of the following?
a.) the fibular head will appear less superimposed by the tibia than a true lateral
b.) the fibular head will appear more superimposed by the tibia than a true lateral
c.) the medial condyle of the femur will appear more posterior
d.) both A and C are correct
a.) the fibular head will appear less superimposed by the tibia than a true lateral
A measure of the ability of a system to display contrast of anatomic objects varying in size describes:
a.) MTF
b.) OID
c.) FOV
d.) DQE
a.) MTF
Which of the following patient rights is violated by discussing privleged patient information with an individual who is not involved with the patients care?
1.) the right to considerate and respectful care
2.) the right to privacy
3.) the right to continuity of care
a.) 1 and 3 only
b.) 2 and 3 only
c.) 2 only
d.) 1 only
c.) 2 only