CFRN Advanced Airway Management 2

Question 1

During a flight transport, a patient's endotracheal tube cuff pressure should be maintained at what range to prevent tracheal mucosal ischemia?

Accepted Answer

20-30 cmH2O

Answer

ETT cuff pressure should be maintained between 20-30 cmH2O to prevent mucosal ischemia while maintaining an adequate seal.

Question 2

A CFRN is transporting a patient with a known difficult airway. The video laryngoscope fails. Which device is the most appropriate next step for a 'can't intubate, can't oxygenate' scenario?

Accepted Answer

Surgical cricothyrotomy

Answer

Surgical cricothyrotomy is the definitive rescue airway in a true 'can't intubate, can't oxygenate' situation when all other methods have failed.

Question 3

At altitude, nitrogen-filled ETT cuffs may over-inflate due to gas expansion. What is the preferred filling agent during flight?

Accepted Answer

Normal saline or sterile water

Answer

Normal saline or sterile water is preferred to fill ETT cuffs during flight because liquids are incompressible and do not expand with altitude changes.

Question 4

Which finding during waveform capnography indicates esophageal intubation?

Accepted Answer

Absence of CO2 waveform after intubation

Answer

Absence of a CO2 waveform after intubation is the most reliable indicator of esophageal placement, as the esophagus does not produce CO2.

Question 5

A CFRN is managing a pediatric patient requiring intubation. Which formula correctly estimates uncuffed ETT size for a child?

Accepted Answer

(Age / 4) + 4

Answer

The formula (Age/4) + 4 estimates uncuffed ETT internal diameter in millimeters for pediatric patients.

CFRN - Certified Flight Registered Nurse Practice Test

CFRN - Certified Flight Registered Nurse Practice Test

CFRN Advanced Airway Management 2