CAMRT Practice Exam 1 2023 questions and
Correct Answers
You receive a req on a 1yr old who is Dx with Talipes equinovarus. What body
part should you expect to x-ray? - CORRECT ANSWER :Feet
Quiz :What formula is used to calculate mAs when SID has been altered? -
CORRECT ANSWER :Old mAs/new mAs = old SID squared/new SID squared
Quiz :When doing single contrast barium enemas, what is the predominant
type of electron interaction occurring in the patient? - CORRECT
ANSWER :Photoelectric
Quiz :What is an advantage of CT over conventional radiography? - CORRECT
ANSWER :Improved soft tissue differentiation
Quiz :Absorbed dose. Which is the most radiosensitive portion of the cell
cycle? - CORRECT ANSWER :Mitosis
Quiz :Millie is a tech. What is the maximum annual permissible whole body
dose that can be registered on her OSL? - CORRECT ANSWER :20mSv
Quiz :What is the term used to describe breaks in chromosomes? - CORRECT
ANSWER :Aberrations
Quiz :In digital imaging, what is the relationship between the matrix and
spatial resolution? - CORRECT ANSWER :Direct
Quiz :What OID is required to optimize the air gap technique? - CORRECT
ANSWER :10-15cm
Quiz :When reviewing previous images from a patient having a barium meal
study, which exam would it be most important to bring to the attention of the
radiologist? - CORRECT ANSWER :*a. Barium enema done 2 days ago
b. IVP done earlier that day
c. Endoscopy without biopsy done 1hr ago
d. CT chest booked immediately following
Quiz :100cm SID changes to 120cm SID, original mAs was 5mAs. What is the
new mAs? - CORRECT ANSWER :7.2
, Quiz :Need to do a femur series on a 17 year old female. When asked if she
could be pregnant she says "I don't know i might be". What do you do? -
CORRECT ANSWER :Determine if pt is in the 10-day period after onset of
menstruation
Quiz :An elderly woman unable to lay on her back or stand needs lumbar spine
x-rays. Besides a routine lateral, what view should you consider? - CORRECT
ANSWER :Lateral decub with AP horizontal beam
Quiz :What should be included in an image looking for ulcerative colitis? -
CORRECT ANSWER :Rectosigmoid area
Quiz :T2/3 is at what level? - CORRECT ANSWER :Sternal notch
Quiz :In an indirect capture digital unit, what is the function of the scintillation
phosphor coating on a photodiode? - CORRECT ANSWER :Cesium iodide is
used to convert x-rays to light
Quiz :What is the relationship between the kV and half value layer? -
CORRECT ANSWER :As kV increases, the HVL decreases
Quiz :T or F to indicate when you would choose to increase the SID from the
dept standard
-Upright abdomen on a large pt
-Long bones to include both jts
-Coned view of odontoid - CORRECT ANSWER :T, T, F
Quiz :On which apparatus would a stationary grid be acceptable? - CORRECT
ANSWER :a. Cystoscopy table
b. Angio unit
*c. Trauma unit
d. Mammo unit
Quiz :Which of the following most effectively minimizes radiation dose to the
pt? - CORRECT ANSWER :-Small focal spot
-High mA stations
-Large OID
*-Collimation
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