RADT QUESTIONS ANSWERS 100
PERCENT CORRECT VERIFIED 2026
IMAGING SCRIPT SOLVED
QUESTIONS VERIFIED ANSWERS A+
◉ what is the collimation for most knee x-rays?
Answer: 8x10 inches lengthwise and 1 inch on the sides
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of less than 19 inches?
Answer: 3-5 degrees caudad
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of between 19-24 inches?
Answer: 0 degrees or perpendicular
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of greater than 24 inches?
Answer: 3-5 degrees cephalad
◉ what is the part position for AP knee?
Answer: supine position with leg extended and femoral condyles parallel
to IR
◉ where is the CR directed for AP knee?
, Answer: 0.5-inch inferior to patellar apex
◉ what is the part position for lateral knee?
Answer: turned onto affected side with knee flexed 20-30 degrees.
femoral condyles perpendicular to IR
◉ what is the CR for lateral knee?
Answer: angled 5-7 degrees caudad entering 1 inch distal to the medial
epicondyle
◉ what is the part position for AP oblique lateral rotation of the knee?
Answer: supine with leg externally rotated 45 degrees
◉ where is the CR directed for AP oblique lateral rotation of the knee?
Answer: 0.5-inch inferior to patellar apex
◉ what is the part position for AP oblique medial rotation of the knee?
Answer: supine with leg rotated 45 degrees medially
◉ PA axial projections are also called:
Answer: tunnel projections
◉ what are the three positions the pt can be placed in for PA axial
holmblad method?
PERCENT CORRECT VERIFIED 2026
IMAGING SCRIPT SOLVED
QUESTIONS VERIFIED ANSWERS A+
◉ what is the collimation for most knee x-rays?
Answer: 8x10 inches lengthwise and 1 inch on the sides
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of less than 19 inches?
Answer: 3-5 degrees caudad
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of between 19-24 inches?
Answer: 0 degrees or perpendicular
◉ what is the CR angle for AP and oblique projections of the knee for
pelvis to tabletop measurement of greater than 24 inches?
Answer: 3-5 degrees cephalad
◉ what is the part position for AP knee?
Answer: supine position with leg extended and femoral condyles parallel
to IR
◉ where is the CR directed for AP knee?
, Answer: 0.5-inch inferior to patellar apex
◉ what is the part position for lateral knee?
Answer: turned onto affected side with knee flexed 20-30 degrees.
femoral condyles perpendicular to IR
◉ what is the CR for lateral knee?
Answer: angled 5-7 degrees caudad entering 1 inch distal to the medial
epicondyle
◉ what is the part position for AP oblique lateral rotation of the knee?
Answer: supine with leg externally rotated 45 degrees
◉ where is the CR directed for AP oblique lateral rotation of the knee?
Answer: 0.5-inch inferior to patellar apex
◉ what is the part position for AP oblique medial rotation of the knee?
Answer: supine with leg rotated 45 degrees medially
◉ PA axial projections are also called:
Answer: tunnel projections
◉ what are the three positions the pt can be placed in for PA axial
holmblad method?
