A 2-year-old toddler is brought to the emergency department by parents who report that the child was playing with small toys and suddenly began coughing violently, then became quiet with decreased breath sounds on the right side. What is the nurse's priority action?

For suspected foreign body aspiration with decreased breath sounds, priority is to maintain position of comfort and prepare for emergency bronchoscopy. Avoid aggressive maneuvers like back blows or forceful coughing, which can dislodge the object and cause complete obstruction.

Understanding the Scenario
A 2-year-old with a classic presentation of foreign body aspiration (FBA) — sudden violent coughing followed by quietness and unilateral decreased breath sounds — indicates a partial or complete airway obstruction that has likely migrated into the right mainstem bronchus. The child is conscious and moving air, albeit asymmetrically. This is not a complete obstruction with ineffective cough, so the immediate focus shifts from basic life support maneuvers to definitive diagnosis and removal.

Why Option 4 is the Priority
Keeping the child in a comfortable position and preparing for emergency bronchoscopy is the correct priority action. Bronchoscopy is the definitive diagnostic and therapeutic method for suspected pediatric FBA, as highlighted in the literature ^[2]. The goal is to minimize agitation, which can increase oxygen consumption and potentially dislodge the object further, causing a complete obstruction. Preparing the child and the equipment for the procedure without delay addresses the underlying problem directly.

Analysis of Incorrect Options
- Option 1 (Initiate back blows and chest thrusts): These maneuvers are indicated for a child with a complete, life-threatening airway obstruction who is unable to cough, breathe, or make sounds. This child has become quiet but has breath sounds, indicating they are still ventilating. Performing back blows could dislodge a partially obstructing object and convert it into a complete obstruction.
- Option 2 (Prompt the child to cough forcefully): A 2-year-old cannot follow directions to cough on command. Furthermore, the child's initial vigorous coughing has subsided, which often indicates fatigue or that the object has lodged in a position where the cough reflex is less effective. Forcing a cough is not a reliable intervention at this stage.
- Option 3 (Place the child supine and ready for oral suctioning): Placing the child supine could cause the foreign body to shift and obstruct the airway more completely. Blind oral suctioning is ineffective for retrieving an object lodged in the bronchus and can cause trauma or push the object deeper.

Pathophysiology and Clinical Reasoning
The right mainstem bronchus is the most common site for aspirated foreign bodies due to its wider diameter and more vertical angle from the trachea. The initial violent coughing is the body's attempt to expel the object. The subsequent "quiet" phase with decreased breath sounds suggests the object has lodged, causing a ball-valve effect or atelectasis distal to the obstruction. This is a life-threatening emergency requiring definitive management. While imaging like chest X-ray (CXR) or computed tomography (CT) can support the diagnosis, studies show that a significant proportion of bronchoscopies for suspected FBA are negative, and clinical suspicion remains paramount [2,3]. The diagnostic performance of CXR alone is limited, and a negative radiograph does not rule out FBA [3,4]. Therefore, the nurse's priority is not to wait for imaging but to recognize the high clinical probability and prepare for the intervention that is both diagnostic and therapeutic — bronchoscopy. Targeted nursing interventions in the pre-procedural phase focus on maintaining a calm environment, keeping the child in a position of comfort (often sitting up or in the parent's lap), providing supplemental oxygen if needed without causing distress, and ensuring nothing is given by mouth (NPO status) in preparation for sedation or anesthesia.