bony thorax Flashcards
SID for AP lordotic chest
72 inches
AP lordotic chest evaluation criteria
-Sternal clavicular ends projected (above/below) the lung apices
-Distances from the vertebral column to the _____________
-___________ lung field is at the center of the exposure field
-___________________ are included within the exposure field
-above
-clavicular ends are equal
-superior
-Clavicles, apices, and two-thirds of the lungs
positioning for AP lordotic chest
patient stand 12 inches away from IR, lean back, roll shoulders forward
respiration instructions for AP Lordotic Chest
second full inspiration
CR angle for AP lordotic chest (standing)
perpendicular to IR
CR angle for AP lordotic chest (supine)
15-20 cephalic
CR entering for AP lordotic chest (standing and supine)
3-4 inches below the jugular notch (mid-sternum)
CR angle for RAO sternum
perpendicular to IR
CR entrance for RAO sternum
center of sternum, 1 inch to the left of midline and midway b/t jugular notch and xiphoid process
SID for sternum (RAO and lateral)
40 inches
kVp for sternum
70-85 for RAO
75-85 for lateral
RAO sternum evaluation criteria
-Sternum is visualized _____________
-Sternum is visualized next to the _____________ with no superimposition by the vertebrae
-No distortion due to ____________
-over the heart shadow
-vertebral column
-over rotation
positioning for RAO sternum
-oblique 15-20 degrees toward right side, RAO
-align long axis of sternum to CR and to midline of bucky
-top of IR approx. 1 1/2 inches superior to the jugular notch
respiration instructions for RAO sternum
expiration
positioning for lateral sternum
arms drawn back, chest thrusted forward
CR angle for lateral sternum
perpendicular to IR
CR entrance for lateral sternum
center of sternum (midway between the jugular notch and xiphoid process)
respiration instructions for lateral sternum
inspiration
how much light field should we have for sternum exams?
1.5 inches of light above jugular notch
evaluation criteria for lateral sternum
-Entire sternum with minimal overlap of soft tissues
-Entire sternum with ______________________
-Lower aspect of sternum not obscured by __________
-no superimposition of ribs…no rotation
-breast tissues
which ribs are the true ribs?
ribs 1-7
which ribs are the false ribs?
ribs 8-12
what makes a rib a true vs. false rib?
true rib = articulate directly with the sternum and their costal cartilages
false rib = indirectly connect with sternum; costal cartilage connect with the 7th cartilage by the costochondral joint