MCC Rad Positioning I Exam-Mods 15-21
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| SC Joints: name the two projections | show 🗑
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| show | Mid-sag at T-3 or perp to 3rd thoracic vertebra at level of jugular notch.
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| show | Superimposing of vertebral and rib shadows; medial portions of clavicles - all through PA projection.
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| SC Joints: Why do we do a PA instead of an AP projection? | show 🗑
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| SC Joints: What is respiration during all projections? | show 🗑
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| SC Joints: During RAO or LAO, what is degree of body rotation? | show 🗑
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| show | Right.
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| show | Right SC joint. The right SC joint is OPEN and the left sc joint is closed.
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| show | LAO - with left side against IR, which will open up left SC joint.
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| SC Joints: What is the CR position for the RAO projection? | show 🗑
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| show | Yes.
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| SC Joint Technical Factors: | show 🗑
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| T/F? The SC joint is the only joint that articulates with the appendicular skeleton. | show 🗑
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| show | Bilateral AP upright WITHOUT weights and bilateral AP upright WITH weights.
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| AC joints: What is another name for Bilateral AP upright (with or without weights)? | show 🗑
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| AC Joints: Where should the CR be positioned? | show 🗑
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| show | Suspended.
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| show | Separation of joint space (dislocation, both, partial or complete). The joint space will be wider on separated side.
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| AC Joints: What should the SID be if you can get both AC joints on one cassette? | show 🗑
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| AC Joints: What is the significance of the 72" SID? | show 🗑
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| show | Small focal, 72" SID (for both AC joints in one exposure), upright bucky, lead marker on affected side AND INDICATION OF WITH OR WITHOUT WEIGHTS.
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| show | Your MAS is multiplied by 4. A 40" SID would need a mAs of 3...a 72" SID = mAs of 10.
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| show | AP AxialAP Oblique w/medial rotation (30 degree part rotation)Lateral
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| show | Phalanges: 14Metatarsals: 5Tarsals: 7Total bones in foot: 26
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| show | Medial cuneiform, intermediate cuneiform, lateral cuneiform, cuboid, navicular, talus & calcaneus.
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| The big toe is also called this... | show 🗑
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| show | Angled 15 degrees posteriorly at level of MTP joint.
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| show | Joint spaces (open) in AP position.
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| show | At the MTP joint of toe.
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| Toes: What structures are demonstrated during AP Oblique w/medial rotation? | show 🗑
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| Toes: Although we didn't do an AP Oblique w/lateral projection during our comps, what is the degree of lateral rotation? | show 🗑
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| Toes - Technical factors: | show 🗑
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| What are the three (3) projections of foot? | show 🗑
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| Foot: What does AP Axial demonstrate? | show 🗑
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| Foot: Where should the CR be positioned for all foot projections? | show 🗑
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| show | Interspaces betwen the lateral tarsals and 3, 4 and 5th bases of metatarsals, cuboid in profile.
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| Foot: What structures are demonstrated during AP oblique w/lateral rotation? | show 🗑
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| show | APAP Oblique w/medial rotationLateral (mediolateral)
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| show | 15 degrees shows ankle mortise; 45 degrees shows tib/fib articulation.
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| Ankle: Where should the CR be positioned during all ankle exposures? | show 🗑
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| Ankle: What structures are demonstrated during AP projection? | show 🗑
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| show | It is useful in determining fractures; tibia superimposed with fibula, subtalar joint and superior aspect of calcaneus seen.
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| Foot: True or False?Metatarsals will not be superimposed on laterals because of the foot's NATURAL ARCH. | show 🗑
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| Foot: What is the significance of dorisflexing foot? | show 🗑
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| show | The lateral and medial malleouses.
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| True or False: RT's should always keep a year's supply of gloves, sanitary wipes and DR. Schoal's foot powder on hand in the unlikely scenario that one has to radiograph a foot, ankle or toe. | show 🗑
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| show | TRUE.
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| Foot Questions:1. What metatarsal is the longest tarsal bone?2. What metatarsal extends most posteriorly? | show 🗑
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| show | TRUE.
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| show | Calcaneus.
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| show | Axial (Plantodorsal or Dorsoplantar) & Lateral.
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| show | Plantodorsal: 40 degrees CEPHALIC.Dorsoplantar:40 degrees CAUDAL.
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| show | Angle tube 40 degrees cephalad; CR enters idline of plantar surface at base of 3rd metatarsal and exits midline of IR at level of malleoli.
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| Calcaneus: Where should CR be positioned for Lateral projection (Mediolateral)? | show 🗑
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| show | TRUE.
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| Calcaneus: The subtalar joint is made up of 3 facts...they are: | show 🗑
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| show | The calcaneus articulates with the TALUS superiorly and the CUBOID posteriorly.
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| show | AP/ Lateral, AP oblique w/medial and AP oblique w/lateral rotation.
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| Lower Leg: CR position? | show 🗑
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| show | AP projection; proximal and distal articulations of tib/fib moderately overlapped.
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| Lower Leg: Lateral structures demonstrated? | show 🗑
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| Lower Leg: Structures demonstrated during AP oblique with lateral rotation? | show 🗑
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| Lower Leg: Structures demonstrated during AP oblique with medial rotation? | show 🗑
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