CAMRT Exam Questions and Answers 100% Pass
Angle 10 degrees caudad - ANSWER ✔✔-What is the central ray for an AP axial coccyx?
Endoscopic Retrograde Cholangiopancreatography; used to diagnose biliary and pancreatic pathologies
when the biliary ducts are not dilated and no obstruction exists in the ampulla - ANSWER ✔✔-What does
ERCP stand for and what is it done for?
AP motility of the cervical spine, or lack of movement due to trauma or disease - ANSWER ✔✔-What do
Flexion/Extension views of the Cervical Spine assess?
Must not exceed 2% of the SID - ANSWER ✔✔-In SC35, what is the limit for light field and x-ray field
alignment?
Assist in detecting early radiologic changes needed to diagnose rheumatoid arthritis - ANSWER ✔✔-
Why do we do a ball catcher's view?
Low blood pressure due to standing upright (dizziness after getting up from a supine position) -
ANSWER ✔✔-What is Orthostatic Hypotension?
Germicide is a solution that destroys microorganisms; Disinfectant is a type of germicide that inhibits the
growth of bacteria - ANSWER ✔✔-What is the difference between Germicide and Disinfectant?
Scaphoid - ANSWER ✔✔-Which carpal bone is most commonly fractured?
Lauenstein=lesser trochanter in profile medially and femoral neck superimposes greater trochanter
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Cross-table Lateral=femoral neck demonstrated without overlap from greater trochanter and a small
amount of the lesser trochanter on the posterior surface of the femur demonstrated in profile - ANSWER
✔✔-What is the difference between Lauenstein and cross-table lateral views of the hip?
Allows accurate measurement for any type of vertebral displacement or noticeable swelling that could
suggest a disguised fracture - ANSWER ✔✔-Why do we include anterior soft tissue on a trauma cross-
table lateral of the c-spine?
The long axis of the lower leg - ANSWER ✔✔-When imaging the intercondylar fossa, which body part is
perpendicular to the central ray?
Employed in patients with early scoliosis to determine the presence of structural change when bending to
the right and left (compensatory curve will correct itself on one of these images), as well predict or assess
degree of correction that can be obtained - ANSWER ✔✔-What is the purpose of lateral bending for
scoliosis imaging?
110-125 kV sufficiently penetrates the heart shadow and visualizes the thoracic vertebrae as well as
provides the long scale of contrast necessary to visualize lung details - ANSWER ✔✔-What is the optimal
kV for a chest x-ray and why?
Angle less (closer to perpendicular) slightly or leave the tube perpendicular so clavicles will be 1" below
apices of lung - ANSWER ✔✔-When doing a portable chest x-ray, how do you adjust the central ray for a
kyphotic patient?
To help reduce artifact of the contrast when the initial injection is given because of the large amount of
contrast that will be entering the superior vena cava before the coronary arteries - ANSWER ✔✔-Why is a
CT study for PE scanned from from abdomen to just above shoulders?
Steroids and antihistamines (Benadryl, Medrol) - ANSWER ✔✔-What type of medication may be
administered to a patient prior to a contrast study to prevent a reaction?
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The ability of an imaging process to distinguish small, adjacent, high-contrast structures in the object -
ANSWER ✔✔-What is Spatial Resolution?
Bring any omissions to their attention - any item that has not been documented on the chart is
considered to be "not performed" in a court of law - ANSWER ✔✔-What should you do if a nurse forgets
to chart a medication during an Intravenous pyelogram (IVP)?
Recorded detail - ANSWER ✔✔-What does penumbra effect?
Through angling the target, the effective area of the target is made much smaller than the actual area of
electron interaction (smaller anode angle=smaller effective focal spot, larger anode angle=larger effective
focal spot) - ANSWER ✔✔-What is the Line Focus Principle?
The pedicles sit too far posterior on vertebral bodies (Remember: ***PP, too much***=posterior pedicles) -
ANSWER ✔✔-How do you know if an oblique image of the L-spine is over-rotated?
Peripherally Inserted Central Catheter; placed in brachiocephalic vein at the junction of the SVC or
actually within the SVC itself; used for measuring central venous pressure as well as allowing nutrients
and fluid to be instilled - ANSWER ✔✔-What is a PICC line? What is its position and purpose?
Placed in right or left pulmonary artery; used to measure wedge pressure, central venous pressure,
systolic, diastolic, and mean pressure, to withdraw blood samples, and to inject drugs or administer
fluids - ANSWER ✔✔-What is the position and purpose of a Swan-Ganz catheter?
From outer to inner: Dura, Arachnoid, and Pia - ANSWER ✔✔-What are the three layers of mater
surrounding the brain?
Acute subdural hematoma will have a crescent-shaped peripheral high-density lesion; Chronic
Subdural hematoma appears as an isodense lesion; They usually result from trauma, and is venous
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bleeding from ruptured veins between the dura and meninges - ANSWER ✔✔-What is the appearance of
a subdural hematoma on a CT (acute and chronic) and the likely cause of one?
Glioma (Glioblastoma) - ANSWER ✔✔-What is the pathology demonstrated in the CT head image?
2^18 = 262144. (The pixel value formula is 2^x, where x is the number given) - ANSWER ✔✔-What is the
pixel value for a detector of 18?
To reduce radiation exposure to selected radiosensitive organs - ANSWER ✔✔-Why should scoliosis
images be performed PA?
A pseudocyst is a dilated space, resembling a cyst, with a collection of fluid and necrotic debris. The
biliary and digestive systems can become compressed with some cysts, thus using a scope to enter the
ducts could cause a hemorrhage or rupture of the cyst if the scope were to accidently hit or penetrate the
cyst. On that note, the injection of x-ray contrast is contraindicated and would NOT be used as the fluid
will collect and as well could rupture the cyst - ANSWER ✔✔-Why is an ERCP exam contraindicated if
the patient has a pancreatic pseudocyst?
Frontal sinuses lying superior to the frontonasal suture, anterior ethmoidal air cells lying on each side of
the nasal fossas and immediately inferior to the frontal sinuses, sphenoid sinuses projected through the
nasal fossas just inferior to or in between the ethmoid air cells, and petrous ridges lying in the lower third
of the orbits - ANSWER ✔✔-What is demonstrated on a 15-degree occipitofrontal view of the sinuses?
Spondylolysis=the breaking down of a vertebra, or replacement of a portion of the vertebral arch with
cartilage; refers to a defect in the pars interarticularis without displacement; Spondylolisthesis=forward
displacement of a vertebra over a lower segment, usually of the 4 th or 5 th lumbar, frequently due to
spondylolysis - ANSWER ✔✔-What is the difference between Spondylolysis and Spondylolisthesis?
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