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NARCOSI D’AZOTO (NDA)
• Cos’è la NDA
• Cause
• Sintomi
• Prevenzione e gestione
Giorgio Scarpecci e Alessio Boccanera, IVG
Cos’è la NDA
La narcosi da azoto è un’insidiosa e pericolosa
sindrome che può insorgere nelle persone che
praticano attività subacquea.
Cause
• Cause fisiche
• Cause psicologiche
• Cause ambientali ed operative
Sintomi
La NDA, proprio per la sua caratteristica fondamentale che è quella di
chiudere e confondere la mente facendo poi perdere la memoria di
tutto o parte di ciò che è successo, nasconde una serie molto nutrita
di segni/sintomi.
• Sintomi leggeri e medi
• Sintomi gravi
Prevenzione e gestione
• Avvisare il compagno
• Rallentare ogni attività fisica, cioè muoversi lentamente e/o
fermarsi
• Controllare la propria respirazione che deve essere lenta e
profonda
• Concentrarsi e rimanere con la mente “sveglia”
• Fissare attentamente un oggetto, mettendo a fuoco
l’immagine e iniziare una serie di ragionamenti a lui
collegati

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Narcosi d’azoto (nda)

  • 1. NARCOSI D’AZOTO (NDA) • Cos’è la NDA • Cause • Sintomi • Prevenzione e gestione Giorgio Scarpecci e Alessio Boccanera, IVG
  • 2. Cos’è la NDA La narcosi da azoto è un’insidiosa e pericolosa sindrome che può insorgere nelle persone che praticano attività subacquea.
  • 3. Cause • Cause fisiche • Cause psicologiche • Cause ambientali ed operative
  • 4. Sintomi La NDA, proprio per la sua caratteristica fondamentale che è quella di chiudere e confondere la mente facendo poi perdere la memoria di tutto o parte di ciò che è successo, nasconde una serie molto nutrita di segni/sintomi. • Sintomi leggeri e medi • Sintomi gravi
  • 5. Prevenzione e gestione • Avvisare il compagno • Rallentare ogni attività fisica, cioè muoversi lentamente e/o fermarsi • Controllare la propria respirazione che deve essere lenta e profonda • Concentrarsi e rimanere con la mente “sveglia” • Fissare attentamente un oggetto, mettendo a fuoco l’immagine e iniziare una serie di ragionamenti a lui collegati