#1
What is the primary goal of oxygen therapy in emergency medical treatment?
To prevent hypoxemia
ExplanationPrevention of low oxygen levels in the blood.
#2
In the context of airway management, what does the acronym 'OPA' stand for?
Oropharyngeal airway
ExplanationA device inserted into the throat to maintain airway patency.
#3
In pulse oximetry, what does the SpO2 measurement represent?
Percentage of hemoglobin saturation with oxygen
ExplanationMeasurement of oxygen saturation in the blood.
#4
What is the recommended oxygen flow rate for a nasal cannula?
4-6 liters per minute
ExplanationFlow rate providing supplemental oxygen through the nose.
#5
Which of the following is a sign of inadequate ventilation?
Tachypnea
ExplanationRapid breathing.
#6
Which of the following is a common technique used for maintaining a patent airway in unconscious patients?
Head tilt-chin lift maneuver
ExplanationManeuver to open the airway by tilting the head and lifting the chin.
#7
What is the recommended oxygen delivery device for patients experiencing severe respiratory distress?
Non-rebreather mask
ExplanationDevice delivering high-flow oxygen with a reservoir bag.
#8
Which of the following is a potential complication of nasopharyngeal airway insertion?
Epistaxis
ExplanationBleeding from the nose.
#9
Which of the following is a common indication for non-invasive positive pressure ventilation (NIPPV)?
Chronic obstructive pulmonary disease (COPD) exacerbation
ExplanationUse in patients with COPD experiencing worsening symptoms.
#10
What is the purpose of a pulse oximeter probe during oxygenation monitoring?
To estimate oxygen saturation levels
ExplanationMeasurement of blood oxygen levels.
#11
Which of the following is a potential complication of bag-valve-mask ventilation?
Barotrauma
ExplanationDamage to the lungs due to excessive pressure.
#12
What is the purpose of cricoid pressure during intubation?
To minimize the risk of aspiration
ExplanationPressure applied to the cricoid cartilage to prevent stomach contents from entering the lungs.
#13
Which of the following is a potential complication of endotracheal intubation?
Pneumothorax
ExplanationCollapsed lung due to air leakage into the chest cavity.
#14
Which of the following is a common complication of prolonged oxygen therapy?
Oxygen toxicity
ExplanationHarmful effects of excessive oxygen levels in the body.
#15
Which of the following conditions is most likely to require emergent surgical airway management?
Maxillofacial trauma with airway compromise
ExplanationSerious facial injury affecting breathing.