Lower Extremities
Which projection of the knee will show the patella in profile?
Lateral
True/False. Lateral oblique is a special view
True
Patient should be rotated ___ degrees for an oblique of the ribs.
45
True/False. Both SI joint obliques should be performed for comparison?
True
What is the purpose for flexing the knees and hips on the AP lumbar projection?
Reduce lordotic curvature
Where should the CR be directed on the AP and lateral projection of the lower leg?
Mid lower leg
What is the main structure demonstrated on the special view knee?
ICF (intercondylar foss)
What is the purpose of using 60"-72" SID for the lateral sternum?
Reduce magnification
What is the correct SID used for AP bilateral AC joints?
72"
What is the correct CR angulation for the AP Sacrum projection?
15 degrees cephalad
For the axial projection of the calcaneus, the ankle should be dorsiflexed so that the plantar surface of the foot is:
90 degrees from the plane of the IR
What is the main clinical purpose for the AP Weight-Bearing projection of the knee?
Arthritis
Which rib projections best demonstrates the axillary ribs without superimposition?
Oblique Ribs
What is the correct amount of weight used for adult patients on the AP AC joint projection?
8 to 10 lbs
Which of the following rami are a part of the pubis bone?
Superior and inferior
How far should the IR extend beyond the ankle or knee joint for an AP projection of the lower leg?
2 inches
What is the correct flexion of the knee for the Camp Coventry method?
40 to 50 degrees
Why would a patient be rotated into a RAO instead of a LAO for the sternum?
RAO uses the heart as a shadow
On the PA oblique projection of the SC joints, the CR should be centered to:
T2-T3 or 3" distal to vertebral prominens
How should the arm be positioned for the AP scapula projection?
Hand supinated, arm abducted 90 degrees
What central ray angulation is required for an AP projection of the knee on a patient with an ASIS-to-tabletop measurement of 18 cm?
3 to 5 degrees caudad
Why is the Beclere method not a preferred projection for the ICF?
Distortion from CR angle and OID
A patient complains of low, posterior, right side pain. Which 2 images should be taken?
AP and RPO
2" below ASIS
How much is the knee flexed on the Merchant projection of the patella?
40 degrees