Exams
Upper Extremity

Forearm

2 default · 0 custom

Quick technique

kVp
60–70
mAs
3–5
SID
40 in
Grid
No
Detector
35x43 cm lengthwise, diagonal placement for tall patients.
Breath
Not critical.

Views

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IMAGE RECEPTOR
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Placeholder
Patient position
Seated at end of table, arm extended.
Part position
Forearm supinated for AP; lateral with elbow flexed 90°, thumb up.
Central ray
Perpendicular to mid-forearm.
IR placement
35x43 cm lengthwise, diagonal placement for tall patients.

TechniqueDefault

kVp
60–70
mAs
3–5
SID
40 in
Grid
No
Breath
Not critical.
Detector
35x43 cm lengthwise, diagonal placement for tall patients.

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Anatomy coverage

Both joints (wrist and elbow) must be visible.

Tech pearls

  • Always include both joints — radiologist needs to see them.
  • Place detector diagonally if patient is tall.

Image evaluation

  • Both joints included on each image
  • AP: radius/ulna parallel, no overlap proximally
  • Lateral: humeral epicondyles superimposed

Common mistakes

  • Cutting off one joint
  • AP with pronated hand (cross-over of radius/ulna)

Trauma modifications

  • If unable to supinate, AP with hand in position of comfort; document.
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Anatomy overview

RadiusUlnaProximal radioulnar jointDistal radioulnar joint
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Protocol controls

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