Certified Pediatric Emergency Nurse (CPEN) Practice Exam

Bronchiolitis is indeed a common viral infection that primarily affects infants and is characterized by inflammation and congestion in the small airways of the lungs. It is most commonly caused by the respiratory syncytial virus (RSV), but can also be triggered by other viruses. Infants, especially those under 2 years of age, are particularly vulnerable due to their smaller airways, which can easily become obstructed during episodes of inflammation.

The clinical presentation often includes wheezing, coughing, and difficulty breathing, which can escalate to respiratory distress, making bronchiolitis a critical condition in pediatric emergency care. Recognizing the signs and understanding the management of bronchiolitis is crucial for pediatric nurses and healthcare providers, as this condition often necessitates timely interventions such as oxygen therapy, hydration, and in some cases, hospitalization for further monitoring and support.

Croup, while common in children and associated with a characteristic barking cough, typically involves the upper airway rather than leading to significant respiratory distress in the same way bronchiolitis does. Epiglottitis is a serious throat infection that can also cause respiratory distress but is less common due to widespread vaccination against Haemophilus influenzae type b (Hib). Pneumonia, although