ASRT Practice Exam 14
The large intestine is positioned low in the abdomen and folds on itself in a person with
a(n) _____ body habitus - answer asthenic
The large intestine is positioned low and folds on itself in a person with an asthenic
body habitus. The large intestine of people with a hypersthene body habitus is
positioned high and around the periphery of the abdomen. The intestines of hyposthenic
and sthenic body habitus types fall somewhere between asthenic and hypersthenic
The inferior vertebral notch from a vertebra and the superior vertebral notch from the
vertebra directly below form the ________ foramen. - answerintervertebral
The intervertebral foramen is formed between 2 adjacent vertebrae. The 2 vertebral
notches form a foramen
________ is a late somatic deterministic effect. - answerCataractogenesis
Cataractogenesis is a late somatic deterministic effect.
Lead acrylic barriers must contain ________ lead per volume. - answer30°
Lead-impregnated acrylic windows and barriers must contain 30% lead by volume.
The latent period of gastrointestinal syndrome lasts for approximately: - answer3 to 5
days
The gastrointestinal syndrome has a latent period of approximately 3 to 5 days.
During C-arm fluoroscopy, which of the following actions reduces patient exposure? -
answerplacing the x-ray tube farther from the patient
Increasing the source-to-object distance (SOD), which means placing the tube farther
from the patient, will reduce patient exposure. Using a grid and operating in high-level
mode increase patient exposure.
Each kidney contains approximately ________ nephron units. - answer1,000,000
Each kidney contains approximately 1,000,000 nephron units. They are the microscopic
functional units of the kidney.
The radiation fog displayed on images is MOST likely caused by a ________ x-ray
interaction. - answerCompton
,The photoelectric interaction results in photon absorption and the secondary radiation
that is produced results in very little exposure to the receptor. Coherent interactions
constitute a small percentage of the interactions and photodisintegration does not occur
in the diagnostic energy range.
A patient is unable to read the instructions on an informed consent form. Staff should
make sure the patient understands the instructions for the examination by: -
answerasking the patient to repeat the instructions back in his or her own words.
For informed consent, the patient should be able to paraphrase the information in his or
her own words and repeat back what they understand about the procedure.
After completing an AP shoulder examination, the radiographer sees the greater
tubercle superimposed - answerneutral rotation
When the humerus is in a neutral position, the greater tubercle is superimposed partially
on the humeral head. Additionally, the posterior portion of the subscapularis tendon
insertion is seen on the image
A patient is admitted to the hospital and after initial assessment has been determined to
be a fall risk. What are some steps to take to ensure the patient's safety - answer1.
patient education
2. using identification systems to alert staff
When a patient has been assessed as a fall risk it is necessary to document the
assessment, use a patient identifier that is known to staff, and educate the patient about
fall risks. Staff should assist with transferring the patient as necessary, but using a lift
transfer is not necessary unless the patient cannot bear weight.
Which of the following is the LEAST desirable way to obtain a detailed patient history? -
answerleading questions
To obtain a detailed and thorough patient history, the health care provider needs to ask
questions and clarify terms to ensure that the most thorough information is obtained.
The provider should avoid using leading questions whenever possible.
A patient in a wheelchair states that he feels steady enough to transfer from the
wheelchair to the to the table.
The best method of transfer with the least amount of technologist movement is the: -
answerstandby assist transfer
A patient who can transfer from a wheelchair to an examination table without assistance
should be allowed to do so with only verbal instructions from the technologist.
Decreased pixel density: - answerdecreases spatial resolution
, Decreased pixel density results in decreased spatial resolution.
Gonadal shielding should be used whenever the primary beam is within ________ cm
of the gonads. - answer5
Gonadal shielding must be used if the primary beam is within 5 cm of the gonads.
Which of the following pathologies would require the greatest decrease in exposure
factors to image? - answeremphysema
Of the conditions listed, emphysema would require the greatest decrease in exposure
factors to image.
An order comes in for a PA axial, or Caldwell method, of the skull. The patient is supine
and is wearing a cervical collar. The patient's AML is perpendicular to the image
receptor. Using the included table as a resource, the angle should be ________ in a
________ direction to compensate. - answer18°; caudal
The angle should be 18°in a caudal direction. For a PA axial Caldwell method of the
skull with a patient who must remain supine, the angle compensation for this portion
would be 15° because the patient is in the posterior position, not anterior with
relationship to the image receptor. Another issue is that the AML, rather than the OML,
is perpendicular to the image receptor rather than the OML. The difference in angle
between the OML and the AML is 33°. Because the OML needs to be perpendicular to
the image receptor, the caudal direction is chosen. The angle compensation for this
portion is 33° caudal. With 2 two angle compensations (33° caudal and 15 °cephalic)
the values are subtracted because they are opposite directions. The net from the
subtraction serves as the direction of the final angle. [33-15 = 18 with a caudal angle]
Therefore, the angle is 18° caudally.
In the diagram below, what is the structure labeled "1"? - answerrotor
This structure is the rotor. It is connected to the anode by the stem. The stators are
located outside of the glass envelope.
Occupational exposure limits are based on the ________ response-dose relationship. -
answerlinear, non-threshold
The linear non-threshold model is the basis for radiation protection and occupational
exposure limits. This model assumes that any dose can elicit a response and the
severity of the response is directly proportional to the dose.
Which of the following is NOT a digestive accessory gland? - answerSpleen
The large intestine is positioned low in the abdomen and folds on itself in a person with
a(n) _____ body habitus - answer asthenic
The large intestine is positioned low and folds on itself in a person with an asthenic
body habitus. The large intestine of people with a hypersthene body habitus is
positioned high and around the periphery of the abdomen. The intestines of hyposthenic
and sthenic body habitus types fall somewhere between asthenic and hypersthenic
The inferior vertebral notch from a vertebra and the superior vertebral notch from the
vertebra directly below form the ________ foramen. - answerintervertebral
The intervertebral foramen is formed between 2 adjacent vertebrae. The 2 vertebral
notches form a foramen
________ is a late somatic deterministic effect. - answerCataractogenesis
Cataractogenesis is a late somatic deterministic effect.
Lead acrylic barriers must contain ________ lead per volume. - answer30°
Lead-impregnated acrylic windows and barriers must contain 30% lead by volume.
The latent period of gastrointestinal syndrome lasts for approximately: - answer3 to 5
days
The gastrointestinal syndrome has a latent period of approximately 3 to 5 days.
During C-arm fluoroscopy, which of the following actions reduces patient exposure? -
answerplacing the x-ray tube farther from the patient
Increasing the source-to-object distance (SOD), which means placing the tube farther
from the patient, will reduce patient exposure. Using a grid and operating in high-level
mode increase patient exposure.
Each kidney contains approximately ________ nephron units. - answer1,000,000
Each kidney contains approximately 1,000,000 nephron units. They are the microscopic
functional units of the kidney.
The radiation fog displayed on images is MOST likely caused by a ________ x-ray
interaction. - answerCompton
,The photoelectric interaction results in photon absorption and the secondary radiation
that is produced results in very little exposure to the receptor. Coherent interactions
constitute a small percentage of the interactions and photodisintegration does not occur
in the diagnostic energy range.
A patient is unable to read the instructions on an informed consent form. Staff should
make sure the patient understands the instructions for the examination by: -
answerasking the patient to repeat the instructions back in his or her own words.
For informed consent, the patient should be able to paraphrase the information in his or
her own words and repeat back what they understand about the procedure.
After completing an AP shoulder examination, the radiographer sees the greater
tubercle superimposed - answerneutral rotation
When the humerus is in a neutral position, the greater tubercle is superimposed partially
on the humeral head. Additionally, the posterior portion of the subscapularis tendon
insertion is seen on the image
A patient is admitted to the hospital and after initial assessment has been determined to
be a fall risk. What are some steps to take to ensure the patient's safety - answer1.
patient education
2. using identification systems to alert staff
When a patient has been assessed as a fall risk it is necessary to document the
assessment, use a patient identifier that is known to staff, and educate the patient about
fall risks. Staff should assist with transferring the patient as necessary, but using a lift
transfer is not necessary unless the patient cannot bear weight.
Which of the following is the LEAST desirable way to obtain a detailed patient history? -
answerleading questions
To obtain a detailed and thorough patient history, the health care provider needs to ask
questions and clarify terms to ensure that the most thorough information is obtained.
The provider should avoid using leading questions whenever possible.
A patient in a wheelchair states that he feels steady enough to transfer from the
wheelchair to the to the table.
The best method of transfer with the least amount of technologist movement is the: -
answerstandby assist transfer
A patient who can transfer from a wheelchair to an examination table without assistance
should be allowed to do so with only verbal instructions from the technologist.
Decreased pixel density: - answerdecreases spatial resolution
, Decreased pixel density results in decreased spatial resolution.
Gonadal shielding should be used whenever the primary beam is within ________ cm
of the gonads. - answer5
Gonadal shielding must be used if the primary beam is within 5 cm of the gonads.
Which of the following pathologies would require the greatest decrease in exposure
factors to image? - answeremphysema
Of the conditions listed, emphysema would require the greatest decrease in exposure
factors to image.
An order comes in for a PA axial, or Caldwell method, of the skull. The patient is supine
and is wearing a cervical collar. The patient's AML is perpendicular to the image
receptor. Using the included table as a resource, the angle should be ________ in a
________ direction to compensate. - answer18°; caudal
The angle should be 18°in a caudal direction. For a PA axial Caldwell method of the
skull with a patient who must remain supine, the angle compensation for this portion
would be 15° because the patient is in the posterior position, not anterior with
relationship to the image receptor. Another issue is that the AML, rather than the OML,
is perpendicular to the image receptor rather than the OML. The difference in angle
between the OML and the AML is 33°. Because the OML needs to be perpendicular to
the image receptor, the caudal direction is chosen. The angle compensation for this
portion is 33° caudal. With 2 two angle compensations (33° caudal and 15 °cephalic)
the values are subtracted because they are opposite directions. The net from the
subtraction serves as the direction of the final angle. [33-15 = 18 with a caudal angle]
Therefore, the angle is 18° caudally.
In the diagram below, what is the structure labeled "1"? - answerrotor
This structure is the rotor. It is connected to the anode by the stem. The stators are
located outside of the glass envelope.
Occupational exposure limits are based on the ________ response-dose relationship. -
answerlinear, non-threshold
The linear non-threshold model is the basis for radiation protection and occupational
exposure limits. This model assumes that any dose can elicit a response and the
severity of the response is directly proportional to the dose.
Which of the following is NOT a digestive accessory gland? - answerSpleen
