ARRT mock exam Questions and
Correct Answers
Which of the following examinations require(s) special identification markers in addition to the usual
patient name and number, date, and side marker?
1. IVU
2. Tomography
3. Abdominal survey - correct answers:1, 2, and 3
What should you do if you discover while taking the patient history that a patient scheduled for an
intravenous urogram (IVU) takes Glucophage (metformin hydrochloride) daily?
1. Proceed with the examination.
2. Reschedule the examination until the patient has been off Glucophage for 48 hours.
3. Instruct the patient to withhold the Glucophage for 48 hours after the examination. - correct
answers:1 and 3 only
An exposure was made using 300 mA, 0.04-second exposure, and 85 kVp. Each of the following changes
will decrease the radiographic density by one-half except a change to - correct answers:10 mAs
LET is best defined as
1. a method of expressing radiation quality.
2. a measure of the rate at which radiation energy is transferred to soft tissue.
3. absorption of polyenergetic radiation.00 - correct answers:1, 2, and 3
A cathartic is used to - correct answers:stimulate defecation
Examples of primary radiation barriers include
1. radiographic room walls.
2. lead aprons.
3. radiographic room floor. - correct answers:1 and 3 only
,All of the following affect patient dose except - correct answers:focal spot size
Which of the following would most likely result in the greatest skin dose? - correct answers:short SID
According to the NCRP, the annual occupational whole-body dose equivalent limit is - correct answers:50
mSv
The zygopophyseal articulations of the thoracic spine are demonstrated with the - correct
answers:coronal plane 70° to the IR.
Which of the following tube angle and direction combinations is correct for an axial projection of the
clavicle, with the patient in the PA position? - correct answers:15° to 30° caudad
The presence of ionizing radiation may be detected in which of the following ways?
1. Ionizing effect on air
2. Photographic effect on film emulsion
3. Fluorescent effect on certain crystals - correct answers:1, 2, and 3
Which of the following positions demonstrates all the paranasal sinuses? - correct answers:Lateral
Which of the following cells is the least radiosensitive? - correct answers:Myocytes
Which interaction between x-ray photons and matter results in total absorption of the incident photon? -
correct answers:Photoelectric effect
Which of the following statements regarding myelography is (are) correct?
1. Spinal puncture may be performed in the prone or flexed lateral position.
2. Contrast medium distribution is regulated through x-ray tube angulation.
, 3. The patient's neck must be in extension during Trendelenburg positions. - correct answers:1 and 3
only
During an intravenous urogram, the RPO position is used to demonstrate the
1. left kidney parallel to the IR.
2. right kidney parallel to the IR.
3. right kidney perpendicular to the IR. - correct answers:1 and 3 only
Foreshortening of an anatomic structure means that - correct answers:it is projected on the IR smaller
than its actual size.
In the AP projection of an asthenic patient whose knee measures less than 19 cm from ASIS to tabletop,
the central ray should be directed - correct answers:5° caudad
Which of the following is (are) required for a lateral projection of the skull?
1. The IOML is parallel to the IR.
2. The MSP is perpendicular to the IR.
3. The CR enters 2 inches superior to the external auditory meatus (EAM). - correct answers:1 only
The type of isolation practiced to prevent the spread of infectious agents in aerosol form is - correct
answers:respiratory isolation.
Exposure factors of 80 kVp and 8 mAs are used for a particular nongrid exposure. What should be the
new mAs if an 8:1 grid is added? - correct answers:32 mAs
Which of the following is a major cause of bowel obstruction in children? - correct
answers:Intussusception
Which of the following projections of the elbow should demonstrate the coronoid process free of
superimposition and the olecranon process within the olecranon fossa? - correct answers:Medial oblique
Correct Answers
Which of the following examinations require(s) special identification markers in addition to the usual
patient name and number, date, and side marker?
1. IVU
2. Tomography
3. Abdominal survey - correct answers:1, 2, and 3
What should you do if you discover while taking the patient history that a patient scheduled for an
intravenous urogram (IVU) takes Glucophage (metformin hydrochloride) daily?
1. Proceed with the examination.
2. Reschedule the examination until the patient has been off Glucophage for 48 hours.
3. Instruct the patient to withhold the Glucophage for 48 hours after the examination. - correct
answers:1 and 3 only
An exposure was made using 300 mA, 0.04-second exposure, and 85 kVp. Each of the following changes
will decrease the radiographic density by one-half except a change to - correct answers:10 mAs
LET is best defined as
1. a method of expressing radiation quality.
2. a measure of the rate at which radiation energy is transferred to soft tissue.
3. absorption of polyenergetic radiation.00 - correct answers:1, 2, and 3
A cathartic is used to - correct answers:stimulate defecation
Examples of primary radiation barriers include
1. radiographic room walls.
2. lead aprons.
3. radiographic room floor. - correct answers:1 and 3 only
,All of the following affect patient dose except - correct answers:focal spot size
Which of the following would most likely result in the greatest skin dose? - correct answers:short SID
According to the NCRP, the annual occupational whole-body dose equivalent limit is - correct answers:50
mSv
The zygopophyseal articulations of the thoracic spine are demonstrated with the - correct
answers:coronal plane 70° to the IR.
Which of the following tube angle and direction combinations is correct for an axial projection of the
clavicle, with the patient in the PA position? - correct answers:15° to 30° caudad
The presence of ionizing radiation may be detected in which of the following ways?
1. Ionizing effect on air
2. Photographic effect on film emulsion
3. Fluorescent effect on certain crystals - correct answers:1, 2, and 3
Which of the following positions demonstrates all the paranasal sinuses? - correct answers:Lateral
Which of the following cells is the least radiosensitive? - correct answers:Myocytes
Which interaction between x-ray photons and matter results in total absorption of the incident photon? -
correct answers:Photoelectric effect
Which of the following statements regarding myelography is (are) correct?
1. Spinal puncture may be performed in the prone or flexed lateral position.
2. Contrast medium distribution is regulated through x-ray tube angulation.
, 3. The patient's neck must be in extension during Trendelenburg positions. - correct answers:1 and 3
only
During an intravenous urogram, the RPO position is used to demonstrate the
1. left kidney parallel to the IR.
2. right kidney parallel to the IR.
3. right kidney perpendicular to the IR. - correct answers:1 and 3 only
Foreshortening of an anatomic structure means that - correct answers:it is projected on the IR smaller
than its actual size.
In the AP projection of an asthenic patient whose knee measures less than 19 cm from ASIS to tabletop,
the central ray should be directed - correct answers:5° caudad
Which of the following is (are) required for a lateral projection of the skull?
1. The IOML is parallel to the IR.
2. The MSP is perpendicular to the IR.
3. The CR enters 2 inches superior to the external auditory meatus (EAM). - correct answers:1 only
The type of isolation practiced to prevent the spread of infectious agents in aerosol form is - correct
answers:respiratory isolation.
Exposure factors of 80 kVp and 8 mAs are used for a particular nongrid exposure. What should be the
new mAs if an 8:1 grid is added? - correct answers:32 mAs
Which of the following is a major cause of bowel obstruction in children? - correct
answers:Intussusception
Which of the following projections of the elbow should demonstrate the coronoid process free of
superimposition and the olecranon process within the olecranon fossa? - correct answers:Medial oblique
