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Lumbar Puncture Technique and CSF Interpretation

You'll be able to plan, perform, and troubleshoot a lumbar puncture and interpret the resulting CSF findings with a clear diagnostic framework.

What this track covers

This track covers the clinical decision-making and technical steps of lumbar puncture, from patient selection through needle placement to reading results. It's built for clinicians who need a structured way to review indications, positioning, technique, and CSF interpretation before or alongside real procedures.

What you will practice

  • Weighing indications against absolute and relative contraindications before proceeding
  • Choosing and optimizing lateral decubitus versus seated positioning for a given patient
  • Selecting needle type and size and estimating insertion depth by body habitus
  • Reading opening pressure and recognizing when values fall outside expected ranges
  • Interpreting CSF cell count, protein, and glucose patterns across common differentials

Simulator scenario

A timed case where the virtual patient presents with suspected meningitis, requiring the clinician to assess contraindications, position and perform the LP, and interpret CSF results to guide next steps.

Board question topics

  • Indications and contraindications for lumbar puncture
  • Positioning and landmark identification
  • Opening pressure measurement and interpretation
  • CSF profile differentiation across common diagnoses

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