Certified Registered Nurse Anesthetist (CRNA) Practice Exam

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For how long can needle jet insufflation be used while awaiting airway securing?

15 to 30 minutes
30 to 45 minutes
45 to 60 minutes
60 to 90 minutes

The correct answer is: 45 to 60 minutes

Needle jet insufflation is a technique used to provide positive pressure ventilation in emergency situations, particularly when securing the airway may take some time. This method involves delivering oxygen or a mixture of gases through a needle into the trachea, which can be critical in maintaining oxygenation until a definitive airway can be established. The duration of 45 to 60 minutes is appropriate for needle jet insufflation because it allows sufficient time to either stabilize the patient's condition or prepare for intubation. While this technique can help maintain ventilation in urgent scenarios, it is not intended for prolonged use, as the risks of complications, such as barotrauma or inadequate ventilation due to changes in the patient's condition, increase with time. The specific timeframe is established based on clinical guidelines and the clinical setting, emphasizing the need for rapid airway management while ensuring the patient remains oxygenated during the wait.