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Environmental · Adult / adolescent · ALS

Adult non-fatal drowning

Support oxygenation and ventilation, assess associated trauma, and use CPAP only in the appropriate conscious patient.

OCEMS source summary · Updated 2026-09-16

Key cautions & base contact

  • CPAP requires its own inclusion/exclusion criteria and ongoing reassessment.
  • Children have a separate drowning order and destination rule.

First assessment

  • Use spinal motion restriction for a diving or shore-break accident. Assess consciousness, airway patency, breathing, perfusion, and oxygen saturation.
  • For SpO₂ below 95%, provide high-flow mask oxygen or nasal cannula at 6 L/min as tolerated. Treat arrest using the adult arrest pathway.

Ventilation and wheeze

  • Monitor and document rhythm. For bradycardia, clear the airway and assist ventilation with BVM and high-flow oxygen.
  • For wheezing, albuterol is 5 mg in 6 mL by continuous nebulization as tolerated. Reassess effort and air movement; inadequate ventilation needs ventilatory support.

Persistent respiratory distress

  • A conscious patient with persistent distress after suctioning/coughing to clear the airway may receive CPAP under its separate criteria. Guard against vomiting and reassess continuously.
  • If unconscious or unable to protect the airway, follow the advanced-airway pathway and confirm placement. Do not use the conscious-patient CPAP step in someone who cannot protect the airway.

Transport

  • Provide ALS escort to the nearest appropriate ERC. Contact base for suspected spinal injury, other trauma, or additional direction as needed.
  • Report mechanism, submersion history if known, respiratory/neurologic findings, oxygen and ventilation support, response, and any vomiting or associated trauma.