Exams
Fluoro / OR

Lumbar Puncture (Fluoro-Guided)

2 default · 0 custom

Quick technique

kVp
75–85
mAs
Pulsed fluoro
SID
Tableside fluoro
Grid
Yes
Detector
Fluoro field.
Breath
Quiet.

Views

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IMAGE RECEPTOR
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Placeholder
Patient position
Prone (fluoro) or lateral recumbent with knees to chest.
Part position
Needle entry at L3–L4 or L4–L5 interspace, midline.
Central ray
Lateral horizontal beam to needle hub for guidance.
IR placement
Fluoro field.

TechniqueDefault

kVp
75–85
mAs
Pulsed fluoro
SID
Tableside fluoro
Grid
Yes
Breath
Quiet.
Detector
Fluoro field.

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Anatomy coverage

Needle path L3–L5 midline.

Tech pearls

  • Always count vertebrae from L5–S1 to confirm level.
  • Use lowest pulsed fluoro rate possible.

Image evaluation

  • Needle clearly visualized in subarachnoid space
  • CSF returns clear

Common mistakes

  • Needle too lateral → nerve root contact / failed tap
  • Failure to verify level (count from L5)
Open Reject Examples for this view
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Facility custom views

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Anatomy overview

L3–L5 interspacesSpinous processesSubarachnoid space

Protocol controls

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