Rheostat - ANSWER-What type of device is the mA selector?
7; 20 - ANSWER-The angle of the anode in the region of the target has a variation of ________
... [Show More] ° to ________ °.
10 days to 6 weeks of development - ANSWER-Exposure of an embryo or fetus to radiation from ________________ can result in congenital
abnormalities.
kilovoltage - ANSWER-The quality of x-ray photons is affected by:
15-20; caudad - ANSWER-For a posteroanterior (PA) axial oblique projection of the C-spine, the central ray is angled ________° in
the _______ direction.
full inspiration - ANSWER-What instructions for respiration are given to a patient during a routine chest lateral projection?
100;100 - ANSWER-Selecting exposure factors of ________ milliampere-seconds (mAs) and _______peak kilovoltage (kVp)
delivers the LEAST amount of radiation to the patient.
Thermionic emission - ANSWER-The process of electrons boiling off the filament is referred to as:
sitting eye level with the child and walking them through the examination - ANSWER-A 4-year old patient enters the radiology suite for chest radiography and appears anxious. The child has
never had the examination before. She is not speaking or answering questions. The technologist could
best attempt to communicate with the child by:
H2O2 - ANSWER-Combining 2 hydroxyl radicals (OH*) will form:
15 inch minimum SSD - ANSWER-Which of the following is a guideline used to reduce personnel and patient dose during fixed fluoroscopy?
rotor and stators - ANSWER-Which of the following components make up the induction motor in an imaging system?
bregma - ANSWER-The junction between the coronal and sagittal sutures of the skull is called the:
bargaining - ANSWER-A terminally ill patient has asked the doctor about possible volunteer opportunities in the hospital. She
says that if she can volunteer in the hospital, she might be able to extend her life a bit longer from doing
good deeds. This represents the ________ stage of grief for the patient.
86 - ANSWER-All of the following are within acceptable kVp accuracy variance for an exposure using 80 kVp EXCEPT
FOR ________ kVp.
-86
-84
-82
-76
visceral - ANSWER-The kVp variance is within + 5%. At 80 kVp, the variance is 4 kVp (80 x .05 = 4). Therefore, 76 kVp - 84
kVp is within acceptable limits.
1,2, and 3 - ANSWER-According to the American College of Radiology, which of the following are indications for obtaining a
skeletal survey? 1. suspected nonaccidental trauma 2. skeletal dysplasias, syndromes, and metabolic
disorders 3. neoplasms
low contrast - ANSWER-An image that has many shades of gray with few differences among them is defined as exhibiting:
bone - ANSWER-Of the following, the greatest attenuator of x-rays is:
-bone
-air
-muscle
-fat
2 inches above the iliac crests - ANSWER-For an upright abdomen, the central ray should be placed on the midsagittal plane and:
kVp - ANSWER-All of the following affect the spatial resolution of an image EXCEPT FOR:
-kVp
-part size
-tube angle
-SID
filtration - ANSWER-Which of the following radiography equipment features is designed to eliminate unnecessary radiation
exposure to the patient?
10 posterior ribs visible above diaphragm - ANSWER-Which of the following radiographic evaluation criterion demonstrates proper inspiration on a PA
projection of the chest?
placing them in the sharps container - ANSWER-Needles used for venipuncture should be properly disposed of by:
compensating - ANSWER-A wedge filter is a type of ________ filter.
increased grid ratio - ANSWER-Radiographers can decrease patient dose by using all of the following EXCEPT:
scaphoid - ANSWER-The anatomic snuffbox overlies the ________ bone and the radial artery. Tenderness in the anatomical
snuffbox is a clinical sign suggesting fracture of this bone, the MOST commonly fractured carpal bone.
cardiac - ANSWER-The ________ sphincter prevents reflux of stomach contents into the esophagus.
analog-to-digital converter - ANSWER-The ________ receives electrons immediately after they are read out from an imaging detector.
increasing the focal spot size - ANSWER-All of the following EXCEPT ________ will result in an increase in AEC response time.
-decreasing kVp
-increasing focal spot size
-increasing part thickness
-increasing SID
fibrosis - ANSWER-Which of the following is considered a late nonstochastic effect?
-fibrosis
-cancer
-birth defect
-increased fertility
topical - ANSWER-Tinctures, ointments, lotions, and sprays are administered by the ________ route.
the hand and wrist - ANSWER-For children older than 3 years, bone age is MOST commonly determined by comparing a radiograph of
________ with a set of reference images.
spatial resolution - ANSWER-Decreasing the detector element size will affect which of the following?
40 - ANSWER-X-ray tubes are operated at or above ______ kVp to avoid being space-charge limited.
small focal spot; optimize spatial resolution - ANSWER-When obtaining images for a bone age protocol on an infant, it is BEST to use the ________ to
________.
hyaline cartilage - ANSWER-Children have epiphyseal plates made of ________ that can be evaluated as part of normal chronologic
age for bone age analysis.
occlusal - ANSWER-When positioning a patient for an AP projection (open-mouth technique) for C1-C2, the ________
plane/lines should be perpendicular to the image receptor.
nasal, lacrimal, vomer, and mandible - ANSWER-Which of the following are facial bones?
trachea and thymus - ANSWER-Which of the following structures is located in the mediastinum?
radiolucent - ANSWER-A contrast medium that lets x-ray photons easily pass through it is considered:
stochastic - ANSWER-Genetic defects and cancer are examples of ________ effects.
anode - ANSWER-The positive side of the x-ray tube is known as the
1,2, and 3 - ANSWER-Which are the appropriate methods to ensure the correct drug is administered to the patient? 1. Confirm
the correct medication. 2. Record the time and date of administration. 3. Check the label at least 3 times.
death - ANSWER-Irradiation of the embryo during the first week of development to equivalent doses exceeding 200 mSv
frequently results in:
rotator cuff tears or labral tears - ANSWER-Evaluation of ________ are the primary indications for arthrography of the shoulder.
45 degrees - ANSWER-Technologists should rotate a patient ________ for anteroposterior (AP) axial oblique projections of the
C-spine.
subcutaneous - ANSWER-A 25-gauge, 0.5-inch needle is BEST used for a(n) ________ injection.
top incisors; base of the skull - ANSWER-When evaluating an AP projection (open-mouth) radiograph of C1-C2, the occlusal surface of the
________ should be superimposed with the ________.
relative - ANSWER-Infants and the elderly often can have trouble maintaining the necessary radiographic position. If an
immobilization device cannot be used, who is the BEST choice for holding the patient?
200 mA, 0.012 seconds, 110 kVp - ANSWER-An acceptable PA chest exam is taken using 300 mA, 0.008 seconds, and 110 kVp. If this examination is
repeated using an AEC that has a minimum response time of 10 ms, which of the following exposure
factors would be appropriate?
7 - ANSWER-Primary radiation barriers must be AT LEAST ______ feet high.
all patents are potentially infected with bloodborne pathogens - ANSWER-Which of the following statements is TRUE regarding standard precautions for venipuncture?
terminate the exposure in the event of equipment or operator error - ANSWER-A backup timer for the automatic exposure control (AEC) serves to:
help distinguish differences between anatomic tissues - ANSWER-The specific purpose of a contrast medium is to:
focused - ANSWER-The ________ grid design is manufactured to match the divergence of the x-ray beam.
OID - ANSWER-Select the item below that is NOT required as part of a standardized technique chart.
500 - ANSWER-The International Commission on Radiological Protection (ICRP) dose equivalent limit for the hands
is_______ mSv.
liver - ANSWER-The ________ is located in the right upper quadrant of the abdomen.
current - ANSWER-When electrons move through a conductor, ________ is said to flow.
AP/PA axial oblique - ANSWER-Which of the following is the BEST projection for demonstrating the intervertebral foramina of the cervical
spine?
nonverbal - ANSWER-Which type of communication includes eye contact, touch and tone of voice?
contrast improvement factor - ANSWER-When discussing the grid, the letter "K" represents the ________.
must be atleast 6 feet long on mobile equipment - ANSWER-Radiation dose to personnel is reduced by following the guideline stating that exposure cords:
150 - ANSWER-According to NCRP Report No. 116, annual occupational exposure to the lens of the eye should not
exceed:
exposure time will decrease - ANSWER-If the center cell is selected for an anteroposterior (AP) lumbar spine, the MOST likely response of the
automatic exposure control (AEC) if the spine is not over the ion chamber is that:
receptor exposure - ANSWER-When the x-ray beam is NOT properly aligned with the grid strips the ________ is changed.
ionization chamber - ANSWER-The ________ is an automatic exposure device that uses a gas-filled container.
bolus - ANSWER-A patient is injected with a large volume of fluid intravenously; this is called a(n):
lateral - ANSWER-Which of the following is the BEST projection for demonstrating the intervertebral foramina of the thoracic
spine?
precent the vein from rolling before injection - ANSWER-When performing venipuncture, the technologist should stabilize the vein before inserting a needle for
intravenous drug injection to:
the joint spaces are perpendicular to the image receptor and open on the resulting image - ANSWER-When acquiring a lateral projection of the finger, it is important to keep the finger parallel to the image
receptor because in this position:
sphenoidal - ANSWER-The ________ sinus(es) sit(s) directly beneath the sella turcica.
specify instructions or locations - ANSWER-The BEST reason to use touch for emphasis when performing a radiologic examination is to:
ionization - ANSWER-The ejection of an electron from an atom or molecule is known as:
0 - ANSWER-If 90 kVp is used with a single-phase generator, the minimum electron voltage across the tube is
________ keV.
deglutition - ANSWER-The act of ________ is observed on fluoroscopy during an esophagram.
water-soluble iodinated contrast - ANSWER-What medium is injected into the joint of a patient undergoing positive single-contrast radiographic
arthrography?
basilic - ANSWER-During positive single-contrast radiographic arthrography, water-soluble iodinated contrast is injected into
the joint space.
66% - ANSWER-Using a 75 kVp x-ray beam with a 0.25 mm lead-equivalent apron provides protection from _______ of
the beam.
parietal - ANSWER-Which of the following is a cranial bone?
diaphragm at the top of the image - ANSWER-The upright abdomen must include the:
10-20 - ANSWER-The typical flow rate for drip infusion drug administration is ________ drops per minute.
AP hip, AP knee, AP ankle - ANSWER-The 3 projections taken for a long-bone measurement (scanography technique) of the lower extremity
include:
patient skin dose - ANSWER-The primary function of filtration is to reduce:
response that is known to occur following exposure to radiation - ANSWER-Select the statement below that is TRUE as it relates to a nonstochastic (deterministic) effect.
costophrenic angles - ANSWER-On a PA chest radiograph, which of the following is MOST inferior?
capitate, hamate, pisiform, scaphoid - ANSWER-Which of the following are carpal bones?
bone age - ANSWER-What type of radiographic study is used to evaluate skeletal maturity?
remnant - ANSWER-Radiation that exits the patient and is directed toward the receptor is referred to as ________ radiation.
xray tube housing - ANSWER-Leakage radiation in the radiography/fluoroscopy exposure room is emitted from the:
0 - ANSWER-The letter "U" as an abbreviation can be mistaken for:
consoles are supplied with high voltage - ANSWER-Which of the following is NOT TRUE concerning operator consoles?
-contain exposure button
-allow for focal spot size selection
-supplied with high voltage
-display AEC settings
parietal peritoneum - ANSWER-The outer portion of the double-walled sac in the abdominal cavity is called the:
kVp - ANSWER-Which of the following technical factors simultaneously affects overall image quality and [Show Less]