LMRT Mock Board Exam Prep

Stress images of the ankle may be ordered to evaluate what pathologic condition?

A. Inversion/eversion injury

B. Jones fracture

C. Lisfranc injury

D. Osteoarthritis

A. Inversion/eversion injury

Increasing diagnostic filtration from 2.5 mm to 3.5 mm will have what effect on x-ray beam intensity?

A. Increase in x-ray beam intensity

B. Decrease in x-ray beam intensity

C. No change in x-ray beam intensity

B. Decrease in x-ray beam intensity

Which two of the following structures are associated with the calcaneus? (Select two)

I. Tuberosity

II. Adductor Tubercle

III. Sustentaculum tali

IV. Trochlea

V. Anterior Crest

I and III

What is the minimum requirement for the evaluation of holes and cracks of shielding accessories?

A. Annually

B. Bi-annually

C. Semi-annually

D. Monthly

A. Annually

When performing an AP projection of the femur, what is the purpose of internal rotation of the leg?

A. To compensate for anteversion of the proximal femur

B. It is more comfortable for the patient

C. To place the patella in the center of the distal femur

D. To better demonstrate the intercondylar fossa

A. To compensate for anteversion of the proximal femur

Which of the listed x-ray generator types has the least amount of voltage ripple?

A. Three-phase, twelve pulse

B. Single-phase, half-wave

C. Single-phase, full-wave

D. Three-phase, six-pulse

A. Three-phase, twelve pulse

An x-ray of the sternum uses a 72-inch source-to-image distance (SID) and a 10-inch by 12-inch image receptor. If the image of the sternum measures 9 cm and the actual sternum measures 6 cm, what is the magnification factor?

A. 54

B. 1.5

C. 8

D. 0.67

B. 1.5

A Picture Archiving and Communication System (PACS) network is used to connect which three of the following? (Select three)

I. Radiologist reading station

II. Imaging Equipment

III. PACS servers

IV. Electronic Medical Record (EMR)

I, II and III

Federal law on radiation protection requires which two of the following? (Select two)

I. Signage for radiation areas

II. Maintaining personnel dose records

III. Publication of personnel dose records

IV. Dosimeters for all employees exposed to radiation

I and II

Because of the binding energy of a K-shell tungsten atom, the minimum electron energy necessary to create a characteristic photon is:

A. 80 kiloelectron volts (keV)

B. 73 kiloelectron volts (keV)

C. 69.5 kiloelectron volts (keV)

D. 55 kiloectron volts (keV)

C. 69.5 kiloelectron volts (keV)

Walls that are considered to be secondary barriers should be:

A. 0.25 mm of lead thickness and be 1.5 meters (5 feet) tall

B. 0.4 mm of lead thickness and be 1.5 meters (5 feet) tall

C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall

D. 1.6 mm of lead thickness and be 2.1 meters (7 feet) tall

C. 0.8 mm of lead thickness and be 2.1 meters (7 feet) tall

The Heimlich maneuver (abdominal thrust) is used for someone who:

A. Has dyspnea while lying supine

B. Is choking

C. Is in cardiac arrest

D. Has a nosebleed

B. Is choking

Expectant mothers who are technologists should wear a fetal dosimeter at what location?

A. At the collar

B. At the thyroid

C. At the waist

D. Outside the apron

C. At the waist

Diabetes mellitus is a metabolic disease resulting from a chronic disorder of:

A. Fat metabolism

B. Bile production

C. Renin production

D. Blood glucose metabolism

D. Blood glucose metabolism

If the generator you are using has 1000 milliampere (mA) capacity and your technique is 20 milliampere-seconds (mAs) at 74 kilovoltage peak (kVp), what is the shortest exposure time possible?

A. 0.02 seconds

B. 0.2 seconds

C. 50 seconds

D. 5.0 seconds

A. 0.02 seconds

The main purpose of adding filtration to the x-ray tube is to:

A. Decrease occupational dose

B. Increase spatial resolution

C. Decrease patient dose

D. Increase image contrast

C. Decrease patient dose

An anteroposterior (AP) chest x-ray was obtained at a 40-inch source-to-image distance (SID), 3.5 milliampere-seconds (mAs), 110 kilovoltage peak (kVp), and a 12:1 grid. Which technical factor change would increase image receptor exposure?

A. Decreased kVp

B. Increased SID

C. Decreased mAs

D. Decreased grid ratio

D. Decreased grid ratio

Radiation safety standards require that collimators be accurate within what percentage of the source-to-image distance (SID)?

A. 2%

B. 10%

C. 5%

D. 25%

A. 2%

Which of the following three signs/symptoms below that would indicate a patient is going into shock? (Select three)

I. Increased urination

II. Pallor

III. Coughing

IV. Increased heart rate

V. Diaphoresis

II, IV and V

The natural curve of the thoracic spine is:

A. Toward the dominant side

B. Kyphotic

C. Lordotic

D. Scoliotic

B. Kyphotic

What is the correct central ray entrance point for the lateral projection of the foot?

A. At the center of the longitudinal arch

B. At the subtalar joint

C. Entering the medial cuneiform, and through the base of the third metatarsal

D. Through the head of the first metatarsal

C. Entering the medial cuneiform, and through the base of the third metatarsal

A patient has the right to review his or her medical records and access information to ensure everything is correct and complete under the document created by which hospital affiliation?

A. American Medical Association (AMA)

B. The Joint Commission (TJC)

C. American Hospital Association (AHA)

D. American Registry of Radiologic Technologists (ARRT)

C. American Hospital Association (AHA)

Which chamber of the heart is responsible for pumping blood to the lungs?

A. Right atrium

B. Right ventricle

C. Left atrium

D. Left ventricle

B. Right ventricle

The interspace between the first and second sacral vertebrae (S1/S2) is located at the level of the:

A. Inferior margin of the rib cage

B. Umbilicus

C. Superior aspect of the iliac crest

D. Anterior superior iliac spine (ASIS)

D. Anterior superior iliac spine (ASIS)

What milliampere (mA) station would be used for an exposure with 0.6 seconds and 50 milliampere-seconds (mAs)?

A. 83 mA

B. 30 mA

C. 38 mA

D. 156 mA

A. 83 mA

To avoid violation of federal law on patient data protections, access to electronic medical records (EMR) should be protected with which three of the following? (Select three)

I. Anti-hacking software

II. Complex passcode requirements

III. Three-step identity verification

IV. Encryption

I, II and IV

Which of the following projections would result in a young female patient receiving a significantly lower dose to her breast tissue during a scoliosis x-ray?

A. Anteroposterior (AP)

B. Posteroanterior (PA)

C. Lateral decubitus

D. Recumbent

B. Posteroanterior (PA)

A patient is brought to the emergency department after a fall with an obvious deformity of the right arm which was caused by the fall. A right humerus series has been ordered. Which of the following projection(s) should be obtained by the radiographer?

A. Anteroposterior (AP) humerus only since right arm should not be moved

B. Routine anteroposterior (AP) and lateral humerus

C. Anteroposterior (AP) humerus without moving the arm and transthoracic lateral projection of the humerus

D. Anteroposterior (AP) humerus and posteroanterior (PA) oblique scapular Y projection

C. Anteroposterior (AP) humerus without moving the arm and transthoracic lateral projection of the humerus

When the patient is properly positioned for a posteroanterior (PA) axial projection of the skull, Calldwell method, what two anatomic structures will be in contact with the image receptor? (Select two)

I. Nose

II. Orbits

III. Chin

IV. Forehead

I and IV

What is most likely indicated if an air-fluid level is seen in the sphenoid sinus on a lateral skull radiograph?

A. Blow-out fracture

B. Basal skull fracture

C. Pituitary carcinoma

D. Ruptured vertebral artery aneurysm

B. Basal skull fracture

What is the central ray entrance point when obtaining a mediolateral weight-bearing projection of the foot?

A. At the center of the transverse arch

B. At the subtalar joint

C. Through the base of the third metatarsal

D. Through the head of the first metatarsal

C. Through the base of the third metatarsal

Which three of the following are types of filtration found in the x-ray imaging system? (Select three)

I. Added

II. Inherent

III. Lead

IV. Aluminum

I, II, and IV

If the primary beam area is doubled by opening the collimator, patient dose and exposure to the operator will:

A. Increase by a factor of 4

B. Increase by a factor of 3

C. Increase by a factor of 2

D. Remain the same

C. Increase by a factor of 2

The thickness of a half-value layer (HVL) is dependent on which two of the following? (Select two)

I. Filter material

II. Energy of the x-ray beam

III. Source-to-image distance (SID)

IV. Milliamperage

I and II

When calculating the heat units for a particular exam, in addition to technical factors used, it may be necessary to consider which of the following additional factors?

A. Age of the patient

B. Speed of the anode

C. Focal spot size

D. Number of exposures

D. Number of exposures

Which projection would best demonstrate the intervertebral foramina of the thoracic vertebrae?

A. Anteroposterior

B. Lateral

C. 45-degree oblique

D. 70-degree oblique

When putting on sterile gloves, what part of the glove, if any, may be touched by the ungloved hand?

A. The inside surface of the glove

B. The palmar surface of the glove

C. Under the folded cuff of the glove

D. No part of the glove may be touched by the ungloved hand

A. The inside surface of the glove

Which of these digital radiography systems is able to display the most diagnostic information?

A. 8-bit system

B. 2-bit system

C. 12-bit system

D. 4- bit system

C. 12-bit system

What is the purpose of primary beam restriction? (Select all that apply)

I. Keep the amount of tissue irradiation to a minimum

II. Improve image quality

III. Reduce patient exposure

IV. Reduce scatter production

I, II, III and IV (All of the above)

How many pairs of floating ribs are there?

A. 1

B. 2

C. 3

D. 4

B. 2

Which of the following practices would be most effective when working with older adult patients?

A. Avoid direct eye contact

B. Use terms of endearment (e.g., "honey" or "sweetie")

C. Turn the radiographic room lights on

D. Use child-like terminology

C. Turn the radiographic room lights on

Which of the following types of joints would be classified as an ellipsoidal joint?

A. Atlantoaxial joint

B. Interphalangeal joints

C. Radiocarpal or wrist joints

D. Intertarsal joints

C. Radiocarpal or wrist joints

Which of the following types of joints would be classified as a plane, or gliding joint?

A. Distal radioulnar joints

B. Interphalangeal joints

C. Radiocarpal joints

D. Intertarsal joints

D. Intertarsal joints

Which of the following describes the beam energy produced by a waveform with a low voltage ripple?

A. High beam energy

B. Low beam energy

C. Midrange beam energy

D. Unchanged beam energy

A. High beam energy

From the list below, choose four types of movement that take place at a ball and socket, or spheroidal joint. (Select four)

I. Flexion/extension

II. Abduction/adduction

III. Circumduction

IV. Pivot

V. Gliding

VI. Rotation

I, II, III and VI

Which cranial bone contains a petrous portion and mastoid air cells?

A. Sphenoid bone

B. Temporal bone

C. Frontal bone

D. Ethmoid bone

B. Temporal bone

What effect does decreasing the primary beam field size (increasing collimation) have on the amount of scatter radiation reaching the image receptor (IR)?

A. Increases amount of scatter radiation reaching the IR

B. Decreases amount of scatter radiation reaching the IR

C. Increasing collimation has no effect on the amount of scatter radiation reaching the IR

B. Decreases amount of scatter radiation reaching the IR

The addition of filtration within the x-ray tube is designed to block the low-energy photons from reaching the:

A. Patient

B. Detector

C. Cathode

D. Anode

A. Patient

What is the annual whole-body radiation dose limit for infrequent exposure to the general public?

A. 2.5 millisievert (mSv)

B. 5 millisievert (mSv)

C. 25 millisievert (mSv)

D. 50 millisievert (mSv)

B. 5 millisievert (mSv)

A patient suffering from chronic dyspnea may also suffer from:

A. Crohn's disease

B. Emphysema

C. Rhinorrhea

D. Pharyngitis

B. Emphysema

The central ray for a lateral chest radiograph should enter the body:

A. 2 inches anterior to the midcoronal plane at the level of the T4/5 interspace

B. Along the midcoronal plane at the level of the T4/5 interspace

C. Along the midsagittal plane at the level of T7

D. Along the midcoronal plane at the level of T7

D. Along the midcoronal plane at the level of T7

What personal protective equipment (PPE) should be worn when entering a patient's room under droplet precaution for influenza if the patient has tested negative for COVID-19?

A. N95 fit-tested respirator

B. Disposable gown

C. Disposable gloves

D. Regular (string) mask

D. Regular (string) mask

Leakage radiation is minimized by what component of the x-ray tube construction?

A. Vacuum envelope

B. Tube housing

C. Anode angle

D. Anode rotation

B. Tube housing

Destruction or alteration of medical records, such as a radiology report, by an unauthorized person, is referred to as:

A. Spoliation

B. Negligence

C. Consequentialism

D. Contributory negligence

A. Spoliations

The jugular notch lies at what level on a sthenic patient?

A. T2-T3 interspace

B. C7

C. T1

D. T4-T5 interspace

A. T2-T3 interspace

Which of the following is the outermost component of a computed radiography (CR) cassette?

A. Carbon fibers

B. Rare-earth metals

C. Photostimulable phosphor (PSP)

D. Amorphous selenium (a-Se)

A. Carbon fibers

What type of personnel dosimeter uses aluminum oxide as the absorbing material?

A. Optically stimulable luminescent dosimeter (OSL)

B. Film badge

C. Thermoluminescent dosimeter (TLD)

D. Pocket dosimeter

A. Optically stimulable luminescent dosimeter (OSL)

Which of the following is a long term condition of the lungs that manifests as obstruction of airway outflow?

A. Chronic obstructive pulmonary disease (COPD)

B. Histoplasmosis

C. Pneumonia

D. Pulmonary edema

A. Chronic obstructive pulmonary disease (COPD)

When performing an oblique projection of the second toe, the foot should be rotated:

A. 30-45 degrees medially

B. 10-15 degrees medially

C. 15-20 degrees laterally

D. 30-45 degrees laterally

A. 30-45 degrees medially

Which three of the following articulations are classified as gliding joints? (Select three)

I. Intermetatarsal

II. Tibiotalar

III. Tarsometatarsal

IV. Distal interphalangeal

V. Proximal tibiofibular

I, III and V

Which three of the following would be considered a secondary barrier? (Select three)

I. Walls over 7 feet tall

II. Wall behind the upright Bucky

III. Control booth

IV. Lead apron

I, III and IV

What effect will decreased collimation (larger exposure field) have on the patient's effective dose when using a fixed technique?

A. Increased patient effective dose

B. Decreased patient effective dose

C. Directly related to patient effective dose

D. Not related to patient effective dose

A. Increased patient effective dose

The transformer core is typically composed of which of the following?

A. Iron

B. Copper

C. Plastic

D. Rubber

A. Iron

In the computed radiography (CR) imaging plate, the initial response of the phosphor layer when interacting with x-ray photons is to release which of the following?

A. An electrical signal

B. A latent image

C. Light photons

D. X-ray photons

C. Light photons

In which of the following ankle projections will the distal tibiofibular articulation be open?

A. 15 degree medial oblique

B. Anteroposterior (AP)

C. Lateral

D. 45 degree medial oblique

D. 45 degree medial oblique

Right and left bending (lateral flexion) images of the lumbar spine demonstrate the:

A. Range of motion of the lumbar spine

B. Open intervertebral disks spaces clearly

C. Zygapophyseal joints

D. Scottie dogs

A. Range of motion of the lumbar spine

The unwanted effects of increased object-to-image (OID) can be mitigated by:

A. Decreasing source-to-image distance (SID)

B. Increasing source-to-image distance (SID)

C. Increasing focal spot size (FSS)

D. Decreasing focal spot size (FSS)

B. Increasing source-to-image distance (SID)

When a 400 milliampere (mA) station is used, which of the following exposure times would be needed to produce 80 milliampere-seconds (mAs)?

A. 0.6 seconds

B. 0.4 seconds

C. 0.5 seconds

D. 0.2 seconds

D. 0.2 seconds

A reduction in the normal number of erythrocytes circulating in the blood is called:

A. Anemia

B. Hyperlipidemia

C. Hypoglycemia

D. Leukemia

A. Anemia

Why is the chest imaged in the posteroanterior (PA) position rather than in the anteroposterior (AP) position?

A. To remove the scapulae out of the lung field

B. To allow the patient to take a deeper breath in

C. To minimize the magnification of the heart

D. To better visualize the costophrenic angles

C. To minimize the magnification of the heart

A radiograph of the femur is produced using 12 milliampere-seconds (mAs), 70 kilovoltage peak (kVp), 40-inch source-to-image distance, and an 8-inch object-to-image distance (OID). If the image of the femur measures 22 inches, what is the actual length of the femur?

A. 17.6 inches

B. 4.4 inches

C. 15.8 inches

D. Not enough information is given

A. 17.6 inches

What is the advantage to having the patient roll their shoulders forward for a posteroanterior (PA) chest?

A. The scapulae are rotated out of the lung fields

B. The anterior ribs are displaced

C. The shoulders are closer to the image receptor

D. The patient is less likely to move

A. The scapulae are rotated out of the lung fields

How does the addition of filtration impact the amount of radiation dosage received by the patient?

A. Increases radiation dose

B. Decreases radiation dose

C. No impact on radiation dose

B. Decreases radiation dose

Which of the following variables influence radiographic contrast?

A. Milliamperage (mA)

B. Source-to-image distance (SID)

C. Grid ratio

D. Exposure time

C. Grid ratio

Which of the following anatomic structures pumps oxygenated blood into the aorta?

A. Right ventricle

B. Left ventricle

C. Right atrium

D. Left atrium

B. Left ventricle

The carpal and tarsal bones are classified as:

A. Long bones

B. Irregular bones

C. Sesamoid bones

D. Short bones

D. Short bones

Which three of the following should be visible on a properly positioned anteroposterior (AP) humerus? (Select three)

I. Lesser tubercle superimposing glenoid cavity

II. Olecranon process superimposing trochlea

III. Greater tubercle in profile

IV. Parallel humeral epicondyles

V. Radial head superimposing coronoid process

II, III and IV

The hospice concept involves family-centered care with an emphasis on:

A. Curative treatment

B. Dependent care measures

C. Palliative treatment

D. Therapeutic procedures

C. Palliative treatment

To evaluate the longitudinal arch of the foot, which of the following weight-bearing projections is needed?

A. Anteroposterior (AP) projection

B. Anteroposterior (AP) medial oblique projection

C. Anteroposterior (AP) lateral oblique projection

D. Lateral weight-bearing projection

D. Lateral weight-bearing projection

The primary barriers in an x-ray room must have a thickness of:

A. 1/16" (1.6 mm) aluminum equivalent

B. 1/32" (0.8 mm) aluminum equivalent

C. 1/16" (1.6 mm) lead equivalent

D. 1/32" (0.8 mm) lead equivalent

C. 1/16" (1.6 mm) lead equivalent

Why is the use of a higher kilovoltage peak recommended? (Select three)

I. Milliampere-seconds (mAs) can be reduced

II. Penetration is increased

III. Milliampere-seconds (mAs) can be increased

IV. Penetration is reduced

V. Patient exposure may be reduced

I, II and V

Source-to-image distance (SID) refers to the distance from the:

A. Collimator to the image receptor

B. Target to the patient

C. Collimator to the patient

D. Focal spot target on the x-ray tube to the image receptor

D. Focal spot target on the x-ray tube to the image receptor

What is the dose limit for the lens of the eye for occupational workers in radiation per The National Council on Radiation Protection and Measurements (NCRP) 116?

A. 20 millisievert (mSv)

B. 50 millisievert (mSv)

C. 150 millisievert (mSv)

D. 250 millisievert (mSv)

C. 150 millisievert (mSv)

Which of the following beam restriction devices is the most versatile for defining the size and shape of the radiographic beam?

A. Collimator

B. Cone

C. Cylinder

D. Aperture diaphragm

A. Collimator

What effect will imaging an anatomic structure with an increased atomic number have on the occurrence of the photoelectric effect?

A. Increased occurrence of the photoelectric effect

B. Decreased occurrence of the photoelectric effect

C. No change in occurrence of the photoelectric effect

A. Increased occurrence of the photoelectric effect

The trachea bifurcates at what vertebral level?

A. C6

B. T1-T2

C. T4-T5

D. T9

C. T4-T5

The acronym LET stands for:

A. Linear energy totals

B. Life expectancy transfer

C. Linear energy transfer

D. Less energy totals

C. Linear energy transfer

The cuboid bone articulates with which of the following bones?

A. Talus

B. Medial cuneiform

C. 5th metatarsal

D. Proximal phalanx of 5th digit

C. 5th metatarsal

In which age group is it most common for children to believe they are sick because they were bad?

A. Toddler age

B. Preschool age

C. Elementary age

D. Adolescence

B. Preschool age

Patient records are shared between medical providers using:

A. Picture Archiving and Communication System (PACS)

B. International Classification of Diseases, 10th Edition (ICD-10)

C. Electronic Health Record (EHR)

D. Digital Imaging and Communication in Medicine (DICOM)

C. Electronic Health Record (EHR)

Which of the following type of fracture occurs only in the orbit?

A. Le Fort

B. Blowout

C. Stellate

D. Colles

B. Blowout

In which of the following positions or projections are the cuboid articulations, sinus tarsi, and tuberosity of the fifth metatarsal best demonstrated?

A. Lateral foot

B. Anteroposterior (AP) oblique foot with lateral rotation

C. Anteroposterior (AP) oblique foot with medial rotation

D. Anteroposterior (AP) weight-bearing foot

C. Anteroposterior (AP) oblique foot with medial rotation

The relationship between distance and the x-ray beam intensity can be expressed by which of the following?

A. Inverse square law

B. Direct square law

C. Reciprocity law

D. Ohms law

A. Inverse square law

A patient's history states there is a possible torus fracture of the radius. Which of the following describes a torus fracture?

A. Incomplete fracture of the shaft with impaction and bulging of the periosteum

B. Incomplete fracture with one side of cortex fractured and displaced

C. Fracture of radius associated with dislocation of ulna

D. Fractured through diseased section of bone

A. Incomplete fracture of the shaft with impaction and bulging of the periosteum

When performing an anteroposterior (AP) axial weight-bearing projection of the feet, what degree and direction of central ray angulation is used?

A. 10-15 degrees toward the heel

B. 10-15 degrees toward the toes

C. 20-30 degrees toward the heel

D. 20-30 degrees toward the toes

A. 10-15 degrees toward the heel

Which two of the following statements regarding respiratory structures are true? (Select two)

I. The right lung has two lobes

II. The portion of the lung superior to the clavicle is called the apex

III. Each lung is enclosed in visceral pleura

IV. The small air sacs where gas exchange takes place are called terminal bronchioles

II and III

When performing a medial oblique projection of the foot, how much should the foot be rotated?

A. 5 degrees

B. 10-12 degrees

C. 15-20 degrees

D. 30-40 degrees

D. 30-40 degrees

In order to demonstrate the interphalangeal joints of the toes, how is the central ray directed for an anteroposterior axial (AP) projection?

A. 10-15 degrees cephalad

B. 10-15 degrees caudal

C. 20-25 degrees cephalad

D. 30-45 degrees cephalad

A. 10-15 degrees cephalad

An anterior oblique projection of the cervical spine would demonstrate the: (Select two)

I. Pedicles

II. Intervertebral foramina

III. Zygapophyseal joints

IV. Articular pillars

I and II

Which barrier has the potential of having direct exposure to the primary beam?

A. Aluminum barrier

B. Protective barrier

C. Primary barrier

D. Secondary barrier

C. Primary barrier