218 - Week 2 Review

• Where should the CR be directed when performing an AP of the forearm?

  Midforearm
• What two bony landmarks are palpated for positioning of the elbow?

  Humeral epicondyles
• How much rotation of the humeral epicondyles is required for the AP medial oblique projection of the elbow?

  45 degrees
• A nonvisible posterior fat pad on a well-exposed, correctly positioned lateral elbow radiograph generally suggests: 

  negative study - no fracture
• A radiograph of the elbow demonstrates the radius directly superimposed over the ulna and the coronoid process in profile. Which projection of the elbow has been performed?

  Medial oblique
• A patient with a fractured forearm had the fracture reduced and a fiberglass cast placed on the extremity. The orthopedic surgeon orders a postreduction study. The original kV was 60 kV. What change in kV is needed?

  63 or 64 kV
• What is the purpose of performing the AP partially flexed projections of the elbow?

  To provide an AP projection if patient cannot fully extend the elbow.
• Which routine projection of the elbow best demonstrates the olecranon process in profile?

  Lateral elbow
• What type of position is shown?

  AP Forearm

  
• What type of position is shown?

  Lateral forearm

  
• What type of projection is shown?

  AP projection of forearm

  
• What type of projection is shown?

  Lateral projection of forearm

  
• What type of position is shown?

  AP elbow

  
• What type of projection is shown?

  AP projection of elbow

  
• What type of position is shown?

  Lateral oblique elbow

  
• What type of projection is shown?

  Lateral oblique projection of elbow

  
• What type of position is shown?

  Lateral elbow

  
• What type of projection is shown?

  Lateromedial projection of elbow

  
• What position of the epicondyles will result in a lateral position of the proximal humerus?

  Perpendicular
• Which AP projection of the shoulder and proximal humerus is created by placing the affected palm of the hand facing inward toward the thigh?

  Neutral rotation
• What additional maneuver must be added to the inferosuperior axial shoulder (Lawrence method) projection to best demonstrate a possible Hill-Sachs defect?

  Exaggerated external rotation of affected limb
• A radiograph of the inferosuperior axial projection (Lawrence method) demonstrates the __________ of the shoulder to be located most superiorly (anteriorly).

  acronian