Forearm - Lateral

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Radiographic Positioning

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Name of projection Forearm - Lateral
Area Covered Radius, ulna, carpals, distal humerus
Pathology shown Fracture, dislocation, foreign body, infection, tumour,
Radiographic Anatomy Forearm Radiographic Anatomy
IR Size & Orientation 24 x 30cm for smaller patients
35 x 43 cm for larger patients
Portrait, divided in 2 usually fits two forearm views, use lead masking for unused half
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid No
Filter No
Exposure 56 kVp
4 mAs
FFD / SID 100cm
Central Ray Directed to mid forearm
Perpendicular to IR
Collimation Centre: Midforearm
Shutter A: Include elbow joint to base of the first metacarpal
Shutter B: Skin line
Markers Distal and lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
Respiration Not applicable
  • Seat patient close to end of table
  • Elbow flexed 90°
  • Hand and wrist in lateral position, with thumb up
  • Entire limb in the same plane
  • Shoulder at table level
  • Align and centre forearm to long axis of IR

Area Covered
Special Notes