Respiratory Therapist

Category - Initiation and Modification of Interventions

Which airway cuff results in the least airway trauma upon intubation?
  1. High pressure, low volume
  2. Low pressure, high volume
  3. High pressure, high volume
  4. Low pressure, low volume
Answer: B-A low pressure, high volume cuff will cause the least airway trauma to a patient.

A low pressure, high volume cuff distributes the seal evenly through the airway instead of traumatizing one area with a very high pressure. Cuff pressures greater than 5 mmHg reduces lymphatic flow, greater than 18 mmHg reduces venous flow, and greater than 30 mmHg reduces arterial flow in the trachea.
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