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Supraglottic airway sizing

Supraglottic airway sizing
Device size Patient weight (kg)
LMA[1]
1 Up to 5
1.5 5 to 10
2 10 to 20
2.5 20 to 30
3 30 to 50
4 50 to 70
5 70 to 100
6 >100
Air-Q[2]
0.5 <4
1 4 to 7
1.5 7 to 17
2 >17 to 30
2.5 30 to 50
3.5 50 to 70
4.5 70 to 100
i-gel[3]
1 2 to 5
1.5 5 to 12
2 10 to 25
2.5 25 to 35
3 30 to 60
4 50 to 90
5 >90
LMA: laryngeal mask airway.
References:
  1. EMS LMA Quick Reference Guide. Available at: https://www.teleflex.com/en/usa/productAreas/ems/documents/EMS-LMA-Airways-Quick-Reference-Guide.pdf (Accessed on January 24, 2018).
  2. air-Q. Available at: http://cookgas.com/index.php/air-q-disposable-2/ (Accessed on January 24, 2018).
  3. i-gel supraglottic airway. Available at: http://www.intersurgical.com/products/anaesthesia/i-gel-supraglottic-airway (Accessed on January 24, 2018).
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