CAMRT EXAM ALL COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

CAMRT EXAM ALL COMPLETE
QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
What is the central ray for an AP axial coccyx? - ANSWER- Angle 10 degrees caudad
What does ERCP stand for and what is it done for? - ANSWER- Endoscopic Retrograde
Cholangiopancreatography; used to diagnose biliary and pancreatic pathologies when
the biliary ducts are not dilated and no obstruction exists in the ampulla
What do Flexion/Extension views of the Cervical Spine assess? - ANSWER- AP motility
of the cervical spine, or lack of movement due to trauma or disease
In SC35, what is the limit for light field and x-ray field alignment? - ANSWER- Must not
exceed 2% of the SID
Why do we do a ball catcher's view? - ANSWER- Assist in detecting early radiologic
changes needed to diagnose rheumatoid arthritis
What is Orthostatic Hypotension? - ANSWER- Low blood pressure due to standing
upright (dizziness after getting up from a supine position)
What is the difference between Germicide and Disinfectant? - ANSWER- Germicide is a
solution that destroys microorganisms; Disinfectant is a type of germicide that inhibits
the growth of bacteria
Which carpal bone is most commonly fractured? - ANSWER- Scaphoid
What is the difference between Lauenstein and cross-table lateral views of the hip? -
ANSWER- Lauenstein=lesser trochanter in profile medially and femoral neck
superimposes greater trochanter
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
Why do we include anterior soft tissue on a trauma cross-table lateral of the c-spine? -
ANSWER- Allows accurate measurement for any type of vertebral displacement or
noticeable swelling that could suggest a disguised fracture
When imaging the intercondylar fossa, which body part is perpendicular to the central
ray? - ANSWER- The long axis of the lower leg
What is the purpose of lateral bending for scoliosis imaging? - ANSWER- 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
What is the optimal kV for a chest x-ray and why? - ANSWER- 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
When doing a portable chest x-ray, how do you adjust the central ray for a kyphotic
patient? - ANSWER- Angle less (closer to perpendicular) slightly or leave the tube
perpendicular so clavicles will be 1" below apices of lung
Why is a CT study for PE scanned from from abdomen to just above shoulders? -
ANSWER- 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
What type of medication may be administered to a patient prior to a contrast study to
prevent a reaction? - ANSWER- Steroids and antihistamines (Benadryl, Medrol)
What is Spatial Resolution? - ANSWER- The ability of an imaging process to distinguish
small, adjacent, high-contrast structures in the object
What should you do if a nurse forgets to chart a medication during an Intravenous
pyelogram (IVP)? - ANSWER- 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
What does penumbra effect? - ANSWER- Recorded detail
What is the Line Focus Principle? - ANSWER- 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)
How do you know if an oblique image of the L-spine is over-rotated? - ANSWER- The
pedicles sit too far posterior on vertebral bodies (Remember: ***PP, too
much***=posterior pedicles)
What is a PICC line? What is its position and purpose? - ANSWER- 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
What is the position and purpose of a Swan-Ganz catheter? - ANSWER- 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
What are the three layers of mater surrounding the brain? - ANSWER- From outer to
inner: Dura, Arachnoid, and Pia
What is the appearance of a subdural hematoma on a CT (acute and chronic) and the
likely cause of one? - ANSWER- 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
bleeding from ruptured veins between the dura and meninges
What is the pat