Question

What could happen if the OPA (oropharyngeal airway) is too large?

Answer 1

A too-large oropharyngeal airway (OPA) can cause airway trauma, exacerbate obstruction, trigger a gag reflex, and increase the risk of aspiration, which may lead to serious respiratory complications.

Step-by-step explanation:

If an oropharyngeal airway (OPA) is too large, it could cause trauma to the airway structures, potentially leading to discomfort, injury, or blockage. In cases of airway obstruction or conditions like sleep apnea, where soft tissue in the throat collapses and blocks the airway, the correct size of OPA is essential to maintain a clear path for air. An OPA that is too big can push the tongue backwards or cause damage to the soft palate, which could worsen airway obstruction and hinder breathing further. Moreover, a too-large OPA bears the risk of stimulating a gag reflex or vomiting, both of which could lead to aspiration and subsequent respiratory complications, such as pneumonia.

Answer 2

Using an OPA that is too large can obstruct the airway by pushing the epiglottis down, cause trauma to throat tissues leading to swelling, and result in ineffective ventilation.

Step-by-step explanation:

If an oropharyngeal airway (OPA) device is too large for a patient, it can cause significant complications and harm. An oversized OPA may push the epiglottis down and obstruct the airway, the very opposite of its intended function. Further, it could cause trauma to the soft tissues within the throat, leading to swelling and potentially aggravating an already compromised airway. When selecting an OPA size, it is crucial to measure from the corner of the patient's mouth to the angle of their jaw to ensure a proper fit, as an incorrect size could lead to a compromised airway or an inability to ventilate the patient effectively.