Notes
Slide Show
Outline
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CPAP
Continuous Positive Airway Pressure
  • Presented by
  • Ben Usatch, MD
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Prehospital CHF Management
  • New Thinking
    • Oxygen
    • Nitrates
    • Diuretics
    • CPAP / Non-Invasive Ventilation


  • Old Thinking
    • Oxygen
    • Diuretics
    • Nitrates
    • Morphine
    • Intubation
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Normal Respiration
4
Fluid in the Chest
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Shunt
  • What we can do:
    • Supplemental O2 to the functioning alveoli
    • CPAP / Non-invasive ventilation
      • Force fluid out
      • Pop open alveoli
  • Occurs when blood passes through the lungs w/o undergoing CO2 and O2 exchange
    • Associated w/ decreased PO2
    • Collapsed alveoli
    • Fluid in alveoli
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Basic Noninvasive Ventilation
  • Manual with assisted ventilations w/BVM
  • Within scope of BLS practice
  • Immediate feedback
  • Simple and fast
  • Ideal for very short ETAs
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Indications for CPAP
  • Moderate/Severe Respiratory Distress
    • Congestive Heart Failure
    • Pulmonary Edema
    • Wet lung sounds


    • COPD???
    • Asthma???
    • Pneumonia???



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CPAP: How It Works
  • Improves gas exchange
  • Improves hemodynamics by reducing preload and afterload.
  •  Increases intra-airway pressure
  • Prevents alveoli collapse (atelectasis)



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CPAP: How It Works
  • The generator


  • Valves


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Precautions
  • Unable to understand directions
  • Excessive secretions
  • Decreased respiratory effort
  • Patients with history of COPD and asthma
    • prone to develop pneumonthorax

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Procedure
  • Explain procedure to the patient
  • Ensure you have adequate O2 on-hand
  • Place mask over face and secure w/ strap
  • “Flow” fully open”
  • “O2” fully closed
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Procedure (contd)
  • Monitor O2 saturation
  • Monitor patients respiratory status
    • If patient worsens, default to BVM &  consider intubation
  • Provide emotional support
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Procedure (contd)
  • Provide supplemental medications
    • Nitoglycerine, Lasix, and Morphine
  • Inform ED of pending arrival and the need for CPAP


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Signs of Success

  • Increasing SPO2


  • Decreased work of breathing
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Signs of failure
  • Increased mask clicking
  • Decreased mask clicking
  • Worsening SPO2
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Contraindications
  • Respiratory Arrest
  • Decreased LOC
  • Possible Pneumothorax
  • Unconscious
  • Facial Trauma


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