RTBC Mock exam #2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Within digital radiography, bit depth defines the:
a. smallest exposure difference that can be detected by the digital system
b. total line pairs per millimeter that can be resolved by digital system
c. total number of gray shades that can be produced by the digital system
d. total number of photons striking the digital receptor - CORRECT ANSWER - total
number of gray shades that can be resolved by digital system
What compound is used in flat-panel image receptors to convert incoming x-ray photons directly
into an electrical signal?
a. amorphous selenium
b. amorphous silicon
c. cesium iodide
d. gadolinium oxysulfide - CORRECT ANSWER - amorphous selenium
During digital image formation, quantization occurs in the:
a. analog-to-digital converted
b. detector assembly
c. tech's control console
d. x-ray tube housing - CORRECT ANSWER - analog to digital converter
Which of the following models was used to establish radiation protection standards for stochastic
effects of radiation?
a. linear nonthreshold model
b. linear threshold model
c. nonlinear nonthreshold model
d. nonlinear threshold model - CORRECT ANSWER - linear nonthreshold model
,What breathing instructions should be given for a lateral sternum x-ray?
a. expiration
b. inspiration
c. no breathing instructions needed
d. shallow breathing during exposure - CORRECT ANSWER - inspiration
The document in which patients identify the type and amount of nutritional and life sustaining
treatments desired at the end of life is referred to as which of the following?
a. do not resuscitate order
b. durable power of attorney
c. living will
d. patient's bill of rights - CORRECT ANSWER - living will
Which of the following conditions would be an indication for retrograde urethrography?
a. bladder cancer
b. evaluation of renal pelvis
c. history of kidney stones
d. urethral obstruction - CORRECT ANSWER - urethral obstruction
Which of the following is considered an intentional tort?
a. failure to obtain consent
b. assault
c. breach of confidentiality
d. malpractice - CORRECT ANSWER - assault
As matrix size increases, the pixel size:
a. decreases
, b. increases
c. remains the same - CORRECT ANSWER - decreases
Patient participation in a research study is voluntary and should be accompanied by:
a. an advanced directive
b. compensation
c. guarantee of treatment
d. informed consent - CORRECT ANSWER - informed consent
Which of the following changes increases the severity of the anode heel effect?
a. decreasing object-to-image distance
b. decreasing source-to-image distance
c. increasing object-to-image distance
d. increasing source-to-image distance - CORRECT ANSWER - decreasing source-to-
image distance
increasing the object-to-image distance from 1" to 2" will result in:
a. decreased scatter production
b. decreased spatial resolution
c. increased scatter production
d. increased spatial resolution - CORRECT ANSWER - decreased spatial resolution
Do not resuscitate (DNR) orders are specific instructions regarding cardiopulmonary
resuscitation (CPR), intubation, and what other life-saving measure?
a. defibrillation
b. feeding tube placement
c. intravenous medication
d. oxygen delivery - CORRECT ANSWER - defibrillation
Exam Questions and CORRECT Answers
Within digital radiography, bit depth defines the:
a. smallest exposure difference that can be detected by the digital system
b. total line pairs per millimeter that can be resolved by digital system
c. total number of gray shades that can be produced by the digital system
d. total number of photons striking the digital receptor - CORRECT ANSWER - total
number of gray shades that can be resolved by digital system
What compound is used in flat-panel image receptors to convert incoming x-ray photons directly
into an electrical signal?
a. amorphous selenium
b. amorphous silicon
c. cesium iodide
d. gadolinium oxysulfide - CORRECT ANSWER - amorphous selenium
During digital image formation, quantization occurs in the:
a. analog-to-digital converted
b. detector assembly
c. tech's control console
d. x-ray tube housing - CORRECT ANSWER - analog to digital converter
Which of the following models was used to establish radiation protection standards for stochastic
effects of radiation?
a. linear nonthreshold model
b. linear threshold model
c. nonlinear nonthreshold model
d. nonlinear threshold model - CORRECT ANSWER - linear nonthreshold model
,What breathing instructions should be given for a lateral sternum x-ray?
a. expiration
b. inspiration
c. no breathing instructions needed
d. shallow breathing during exposure - CORRECT ANSWER - inspiration
The document in which patients identify the type and amount of nutritional and life sustaining
treatments desired at the end of life is referred to as which of the following?
a. do not resuscitate order
b. durable power of attorney
c. living will
d. patient's bill of rights - CORRECT ANSWER - living will
Which of the following conditions would be an indication for retrograde urethrography?
a. bladder cancer
b. evaluation of renal pelvis
c. history of kidney stones
d. urethral obstruction - CORRECT ANSWER - urethral obstruction
Which of the following is considered an intentional tort?
a. failure to obtain consent
b. assault
c. breach of confidentiality
d. malpractice - CORRECT ANSWER - assault
As matrix size increases, the pixel size:
a. decreases
, b. increases
c. remains the same - CORRECT ANSWER - decreases
Patient participation in a research study is voluntary and should be accompanied by:
a. an advanced directive
b. compensation
c. guarantee of treatment
d. informed consent - CORRECT ANSWER - informed consent
Which of the following changes increases the severity of the anode heel effect?
a. decreasing object-to-image distance
b. decreasing source-to-image distance
c. increasing object-to-image distance
d. increasing source-to-image distance - CORRECT ANSWER - decreasing source-to-
image distance
increasing the object-to-image distance from 1" to 2" will result in:
a. decreased scatter production
b. decreased spatial resolution
c. increased scatter production
d. increased spatial resolution - CORRECT ANSWER - decreased spatial resolution
Do not resuscitate (DNR) orders are specific instructions regarding cardiopulmonary
resuscitation (CPR), intubation, and what other life-saving measure?
a. defibrillation
b. feeding tube placement
c. intravenous medication
d. oxygen delivery - CORRECT ANSWER - defibrillation
