Medical Lane
M7

OCCLUSIVE DRESSING / NEEDLE DECOMPRESSION

10 minutes

Conditions: Teammate received GSW to upper body. Conscious, complaining of difficulty breathing. Non-CBRNE. Behind cover, security established.

Understanding This Task

This task covers two critical chest wound interventions. First, apply occlusive dressings to both entry and exit wounds. Then if tension pneumothorax develops, perform needle chest decompression (NCD).

NCD primary site: 5th intercostal space (ICS) at the anterior axillary line (AAL) on the injured side. Insert at 90 degrees over the superior border of the lower rib.

Always check for BOTH entry and exit wounds by log rolling the casualty.

Common NO-GO Mistakes

  • Not checking for exit wound
  • Wrong NCD site (must be 5th ICS, anterior axillary line)
  • Not inserting needle at 90 degrees
  • Not advancing needle all the way to the hub
  • Forgetting to stabilize catheter with tape

Task Basis: 081-833-0069, 081-833-3007, 081-833-0164, 081-000-0013

Timer: 10 Minutes
10:00
Critical Notes
  • NCD primary site: 5th ICS, anterior axillary line.
  • Needle at 90 degrees, superior border of lower rib, advance to hub.
  • Always check for BOTH entry and exit wounds.

PERFORMANCE MEASURES

0/6 GO
  1. 1

    Apply occlusive dressing

    • Expose injuries.
    • Apply dressing to entry wound upon full expiration. Cover wound 2 inches beyond edge. Tape all 4 sides (if non-adhesive).
    • Log roll casualty to unaffected side. Apply dressing to exit wound with same standards.
  2. 2

    Verify tension pneumothorax (3+ indicators)

    • Difficulty breathing, pain on affected side, coughing blood.
    • Poor respiratory rate and depth, abdominal distension.
    • Tracheal deviation and/or jugular distension.
    • Subcutaneous emphysema (crackling sensation on chest).
    • Unilateral chest distension — place hand on each side, observe height difference.
    • Cyanosis (bluish skin).
    • Signs of shock.
  3. 3

    Identify needle decompression site

    • Primary: 5th intercostal space (ICS) at anterior axillary line (AAL), same side as injury.
    • Alternate (primary pediatric): 2nd ICS, midclavicular line.
  4. 4

    Perform needle chest decompression CRITICAL

    • Clean site with alcohol or Betadine.
    • Insert 3.25 inch, 10 or 14-gauge needle at 90 degrees to chest wall.
    • Insert at superior border of lower rib at the ICS site.
    • Advance needle all the way to the hub. Leave in place 5-10 seconds.
    • Remove needle, leave catheter in place.
    • If tension pneumothorax recurs: repeat NCD on injured side.
    • Stabilize catheter hub to chest wall with adhesive tape.
    • Listen for increased breath sounds or observe decreased respiratory distress.
  5. 5

    Measure pulse oximetry (O2 SAT)

    • Wipe fingertip with alcohol (clean and dry).
    • Apply sensor. Document reading.
  6. 6

    Record all treatments on TCCC card

    • Front: EVAC priority, date, time, mechanism (GSW), injury sites, vitals, O2 SAT.
    • Back: EVAC priority, breathing interventions (needle-D, chest seal), first responder info.