• Home
  • About
  • Knobology
    • What is Ultrasound
    • Cardinal Movements
    • Ultrasound Modes
  • Cardiac
    • Basic Cardiac Views
    • LV Function
    • RV Function
    • Aortic Regurgitation
    • Aortic Stenosis
    • Mitral Regurgitation
    • Tricuspid Regurgitation
  • Lung
    • Lung Assessment
    • Pneumothorax
    • Pleural Effusion
  • Volume Status
    • JVP
    • IVC
  • Abdomen/Renal
    • FAST exam
    • Hydronephrosis
  • Advanced
    • THI/Dynamic Range
    • Velocity Time Integral
    • LVOT VTI
    • VEXUS
  • GIM Fellows
  • POCUS Selective
  • Contact
  • More
    • Home
    • About
    • Knobology
      • What is Ultrasound
      • Cardinal Movements
      • Ultrasound Modes
    • Cardiac
      • Basic Cardiac Views
      • LV Function
      • RV Function
      • Aortic Regurgitation
      • Aortic Stenosis
      • Mitral Regurgitation
      • Tricuspid Regurgitation
    • Lung
      • Lung Assessment
      • Pneumothorax
      • Pleural Effusion
    • Volume Status
      • JVP
      • IVC
    • Abdomen/Renal
      • FAST exam
      • Hydronephrosis
    • Advanced
      • THI/Dynamic Range
      • Velocity Time Integral
      • LVOT VTI
      • VEXUS
    • GIM Fellows
    • POCUS Selective
    • Contact
  • Home
  • About
  • Knobology
    • What is Ultrasound
    • Cardinal Movements
    • Ultrasound Modes
  • Cardiac
    • Basic Cardiac Views
    • LV Function
    • RV Function
    • Aortic Regurgitation
    • Aortic Stenosis
    • Mitral Regurgitation
    • Tricuspid Regurgitation
  • Lung
    • Lung Assessment
    • Pneumothorax
    • Pleural Effusion
  • Volume Status
    • JVP
    • IVC
  • Abdomen/Renal
    • FAST exam
    • Hydronephrosis
  • Advanced
    • THI/Dynamic Range
    • Velocity Time Integral
    • LVOT VTI
    • VEXUS
  • GIM Fellows
  • POCUS Selective
  • Contact

Pneumothorax

Probe(s): Curvilinear or Phased array

Preset: Lung or abdominal


  1. Use a linear probe and place on the the most anterior part of the chest
  2. Reduce depth until the pleura is visible beyond the ribs
  3. Assess for lung sliding in 3 locations per hemithorax, sliding down the chest to examine additional zones


Findings Suggestive of Pneumothorax:

  • Absent lung sliding (not specific to pneumothorax)
  • Lung point (transition between where lung starts and stops)


Findings that rule out Pneumothorax:

  • Presence of lung sliding
  • Presence of B-linee

This shows a normal lung. Observe the shimmering at the pleural line which is lung sliding.

Copyright © 2025 Impocus - All Rights Reserved.

Resource: cpocus.ca, EDE Handbook

Powered by

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

DeclineAccept