RADI 299 - PROCEDURE QUIZ 1

How does the central ray (CR) for an anteroposterior (AP) scapula differ from an AP shoulder x-ray?

1 inch lower

How is the central ray directed for an anteroposterior (AP) axial projection of the cervical vertebrae?

15-20 degrees cephalic to enter at C-4

What is the angle formed by the intervertebral foramina and the midsagittal plane in the thoracic spine (what angle from MSP shows the Foramina)

90 degrees

How should the radiographer position the patient to best demonstrate a left axillary 6th rib fracture?

Upright and 45 degree left posterior oblique (LPO)

For a tangential inferosuperior projection of the zygomatic arch, how is the patient's head positioned to demonstrate a depressed fracture of the right zygomatic arch?

rotated toward the right side

A posteroanterior (PA) chest radiograph demonstrates the left clavicle closer to the center of the spine than the right clavicle. Which action should the radiographer take?

Turn right side closer to image receptor (IR)

Which rotation represents the correct central ray (CR) placement for an axiolateral oblique mandible projection if the ramus is the region of interest?

place head in true lateral

A radiographer prepares to perform an anteroposterior (AP) projection of the distal femur on a patient with a suspected femoral fracture. Which represents the best approach for positioning both the patient and the x-ray tube?

Do not rotate the leg; place the anode end of the tube toward the foot.

An anteroposterior (AP) oblique mortise joint projection demonstrates the distal fibula without talar superimposition and an open talofibular joint. What should the radiographer do next

no correction needed

Which study is considered a nonfunctional examination of the urinary system?

retrograde urogram

In a properly positioned oblique lumbar spine radiograph, what makes up the '"body" of the '"Scotty dog?"

lamina

Which carpal bone is most commonly fractured?

Scaphoid

What is the best projection and position to demonstrate the right cervical intervertebral foramina?

Anteroposterior (AP) axial oblique projection, left posterior oblique (LPO) position

A lateral L-5/S-1 lateral lumbosacral junction is performed with the central ray (CR) directed 2 inches anterior to the anterior superior iliac spine (ASIS) and 1-1/2 inches inferior to the iliac crest. Which statement describes this method?

The central ray will be well anterior to the L-5/S-1 junction

Which bone contains a mastoid process?

temporal

How should the patient be instructed to place their arms for a standing lateral projection of the sternum?

behind back

Which position best demonstrates a posterior rib injury above the diaphragm?

Anteroposterior (AP), upright.

A carpenter smashes his index finger with a hammer. Which type of fracture might be shown on the subsequent radiographs of the finger?

comminuted

When performing an anteroposterior (AP) Axial (Towne method) image of the skull, which reference line should be perpendicular to the image receptor (IR) if using a 30 degree caudal angle?

OML

A radiographer prepares to position a patient with a suspected hip injury. The patient is positioned on a backboard with the right leg and foot lying on its lateral aspect. Which should the radiographer do to successfully complete the examination?

perform the exam without repositioning the leg

Which positioning method is prescribed to demonstrate the right zygomatic arch free of superimposition on an inferosuperior tangential projection?

Rotate the head to the right with the chin tilted to the right

Which elbow projection will show the radial head freest of superimposition?

Anteroposterior (AP), external oblique

The radiographer uses the Holmblad method to perform a tunnel view of the knee. What is the primary advantage of utilizing this method instead of the Camp Coventry method

The Holmblad method shows no distortion longitudinally or laterally.

Which projection best demonstrates the tripod fracture of the orbit/zygoma?

Parietoacanthial (Waters)

Which central ray (CR) angle is best for heavy, wide-hipped patients for lateral lumbar spine projections?

5 degrees caudad

During a lumbar myelogram, the needle is placed into which meningeal space?

subarachnoid

Which is the most likely cause of free intraperitoneal air on an anteroposterior (AP) erect abdomen radiograph?

bowel perforation

The only saddle joint in the body is found between which two bones?

Trapezium and first metacarpal

Which describes the correct positioning for a posteroanterior (PA) chest projection? (list 3)

- The shoulders are at equal distances from the image receptor (IR)

- the shoulders are depressed

- the chin is extended

Why is the left lateral decubitus position recommended as part of an acute abdominal series?

Free air is demonstrated away from the gastric bubble

How many degrees of rotation is utilized to view the meniscus on an arthrogram of the knee between each exposure?

20 degrees

Which condition represents the most likely indication for an anteroposterior (AP) chest projection with the patient in the left lateral decubitus position?

effusion in left lung

Which is the disease process that causes increased radiodensity in the lung fields on an image due to inflammation and accumulation of fluid?

pneumonia

Which central ray (CR) orientation is recommended for an anteroposterior (AP) knee projection if the measurement from the tabletop to the patient's anterior superior iliac spine (ASIS) is 25 cm?

5 degrees cephalad

Which joint is the central ray (CR) entrance point for a posteroanterior (PA) finger projection?

Proximal interphalangeal (PIP)

The tarsal sinus is visualized when the foot is seen in what projection?

30 degrees medial oblique

A patient's abdominal image reveals the presence of multiple phleboliths. Where are these small calcifications found?

vein

Which factor is critical to demonstrating fluid levels within the chest on a portable examination?

Horizontal central ray (CR)

On an accurately positioned posteroanterior (PA) chest radiograph, the manubrium of the sternum is seen at the level of which thoracic vertebrae when the patient is sthenic?

4th

A request for a shoulder exam comes from the emergency room. The patient has a large deformity anterior to the shoulder and the physician suspects an anterior dislocation. Which are the most appropriate views to take on this patient?

Anteroposterior (AP) projection in neutral rotation and posteroanterior (PA) oblique scapular Y

What is the recommended central ray (CR) angle if the lumbar spine cannot be adjusted so it is horizontal for the lateral projection?

5 degrees for men, and 8 degrees caudad for women.

Which statement accurately describes the appearance of a correctly positioned anteroposterior (AP) hip image?

The femoral neck is demonstrated without foreshortening

An emergency room physician suspects a 14-year-old male patient may have Osgood-Schlatter's disease. Which radiographic exam might the ER physician order to evaluate this?

tibia-fibula

A patient with a left anterior rib injury. In which position should the patient be placed for the oblique image?

45-degree right anterior oblique (RAO).

Which central ray orientation is recommended for a radiographic image of the contrast-filled urinary bladder with the patient in the supine position?

2 inches superior to the pubic symphysis with a 10- to 15-degree caudal angle.