ITLS - International Trauma Life Support Airway Management and Ventilation Questions and Answers 1 — Questions and Answers
Question 1: A 34-year-old male has sustained a severe traumatic brain injury (TBI) and is intubated. According to ITLS guidelines, what is the target range for end-tidal CO2 (EtCO2) when ventilating this patient?
- 25-30 mmHg
- 30-35 mmHg
- 35-45 mmHg (Correct answer)
- 45-50 mmHg
Correct answer: 35-45 mmHg
ITLS guidelines recommend maintaining an end-tidal CO2 between 35-45 mmHg for most intubated trauma patients, including those with TBI. Hyperventilation (lower EtCO2) can cause cerebral vasoconstriction and subsequent hypoxia, which can worsen secondary brain injury. It is reserved only for brief periods in cases of active cerebral herniation.
Question 2: You are managing the airway of an unconscious adult trauma patient with a suspected cervical spine injury. Which of the following is the most appropriate initial manual maneuver to open the airway?
- Head-tilt, chin-lift
- Jaw-thrust maneuver (Correct answer)
- Flexion of the neck
- Placement in the recovery position
Correct answer: Jaw-thrust maneuver
In a trauma patient with a suspected cervical spine injury, the jaw-thrust maneuver is the recommended technique to open the airway. This method minimizes movement of the head and neck, unlike the head-tilt, chin-lift, which is contraindicated due to the risk of exacerbating a spinal injury.
Question 3: A patient involved in a high-speed MVC is unresponsive, apneic, and has significant maxillofacial trauma, making bag-mask ventilation and endotracheal intubation impossible. According to the ITLS Airway Algorithm, what is the next appropriate step?
- Attempt nasotracheal intubation
- Place a supraglottic airway (SGA) (Correct answer)
- Perform a needle cricothyrotomy
- Wait for a more experienced provider
Correct answer: Place a supraglottic airway (SGA)
In a 'Can't Intubate, Can't Ventilate' scenario, the ITLS algorithm prioritizes oxygenation. After failed intubation, the next step is to attempt placing a supraglottic airway (SGA) like an LMA. If the SGA placement fails or does not provide adequate ventilation, a surgical airway (cricothyrotomy) would then be indicated.
Question 4: Which of the following is the most reliable method for confirming the correct placement of an endotracheal tube in a trauma patient with a pulse?
- Bilateral breath sounds on auscultation
- Condensation in the endotracheal tube
- Symmetrical chest rise with ventilation
- Continuous waveform capnography (Correct answer)
Correct answer: Continuous waveform capnography
While auscultation, chest rise, and tube condensation are all used as indicators, continuous waveform capnography is the most reliable method to confirm and continuously monitor endotracheal tube placement. It provides a quantitative measure of exhaled CO2, confirming tracheal rather than esophageal placement.
Question 5: When ventilating a non-intubated adult trauma patient with a bag-valve-mask (BVM), which of the following actions is most critical to perform?
- Deliver ventilations as rapidly as possible
- Use the smallest adult bag available
- Ensure a good mask seal and deliver breaths over 1 second (Correct answer)
- Apply cricoid pressure continuously
Correct answer: Ensure a good mask seal and deliver breaths over 1 second
Effective BVM ventilation requires a proper seal on the face and delivering each breath over 1 second, just enough to cause visible chest rise. This technique minimizes the risk of gastric insufflation, which can lead to vomiting and aspiration. Rapid or forceful ventilations increase the likelihood of air entering the stomach.
Question 6: According to the ITLS Airway Algorithm, a critical objective in managing a trauma patient's airway and breathing is to maintain an oxygen saturation (SpO2) of at least:
- 85%
- 90%
- 88%
- 93% (Correct answer)
Correct answer: 93%
The ITLS Airway Algorithm for Trauma emphasizes that keeping the oxygen saturation above 93% is critical. This threshold is set to limit complications such as hypoxic brain injury, hemodynamic decompensation, and cardiac dysrhythmias in the trauma patient.
ITLS - International Trauma Life Support Airway Management and Ventilation Questions and Answers 1
A 34-year-old male has sustained a severe traumatic brain injury (TBI) and is intubated.
According to ITLS guidelines, what is the target range for end-tidal CO2 (EtCO2) when ventilating this patient?