|Needle catheter||A needle catheter is placed directly into the cricothyroid space.|
|Percutaneous dilational||Seldinger technique A guidewire is inserted through a needle or catheter. An airway catheter is then introduced over a dilator, which is threaded over the guidewire.|
|Surgical||An incision is made into the cricothyroid space, then a tracheostomy or endotracheal tube is introduced. (A standard ventilation circuit, such as an Ambu bag, can be used with a Surgical Cricothyroidotomy)|
Note 1: Use neck externsion, to increase exposure to cricotyroid membrane. Use a head ring, to steady the head, and place a bolster or pillows between the shoulders.
Note 2: When oxygenating through via a cricothyroid cannula, inspiration should take 1 second, and 3-4 seconds should be allowed for passive expiration.