Pediatric Pulmonology Glossary
103 terms total — 24 showing — Last updated 15 Sep 2026
Lung Clearance Index LCI
A measure of ventilation inhomogeneity derived from multiple-breath washout testing, reflecting how efficiently a gas (typically nitrogen or sulfur hexafluoride) is cleared from the lungs.
air leak syndrome
Collection of conditions where air escapes from the alveoli into abnormal spaces within the thorax.
Airway Resistance
The opposition to airflow within the respiratory tract, measured as the pressure difference required to generate a unit...
allergic bronchopulmonary aspergillosis
A hypersensitivity disorder caused by an immunological reaction to Aspergillus species colonising the bronchial mucosa,...
apnea of prematurity
Cessation of breathing for 15-20 seconds in premature infants, often accompanied by bradycardia or oxygen desaturation.
Asthma Action Plan
A written, personalized management document outlining step-by-step instructions for a pediatric patient to control asthm...
Asthma Predictive Index
A validated clinical tool used in pediatric pulmonology to estimate the likelihood that recurrent wheezing in early chil...
atelectasis
Partial or complete collapse of lung tissue resulting in reduced gas exchange and impaired ventilation.
BiPAP
Bi-level positive airway pressure ventilation providing different pressure levels during inspiration and expiration for...
bronchial hyperresponsiveness
Exaggerated bronchoconstrictive response to stimuli, a hallmark feature of asthma in children requiring specialized test...
bronchiectasis
Permanent, abnormal dilation and distortion of the bronchi resulting from chronic infection, inflammation, or obstructio...
bronchiolitis
Inflammation of the small airways in the lungs, most commonly affecting infants under two years.
bronchiolitis obliterans
Rare inflammatory condition causing scarring and narrowing of the smallest airways in children.
Bronchoalveolar Lavage
A diagnostic procedure in which sterile saline is instilled and recovered from a distal airway segment via bronchoscope...
bronchodilator
Medication that relaxes smooth muscle in airways to relieve bronchospasm, fundamental therapy in pediatric asthma and re...
bronchogram
Radiographic imaging study using contrast material to visualize the tracheobronchial tree and detect airway abnormalitie...
bronchopulmonary dysplasia
A chronic lung disease affecting premature infants who required mechanical ventilation and oxygen therapy.
bronchopulmonary sequestration
Congenital malformation where abnormal lung tissue lacks normal bronchial connection and has anomalous blood supply.
bronchoscopy
A procedure using a flexible or rigid scope to visualize the airways and perform diagnostic or therapeutic interventions...
chest physiotherapy
A collection of manual and mechanical techniques used to mobilize and clear retained secretions from the airways in pedi...
chest X-ray
A plain radiographic image of the thorax used as a first-line imaging tool in pediatric pulmonology to evaluate lung fie...
choanal atresia
Congenital blockage of the nasal passages that can cause severe respiratory distress in newborns who are obligate nasal...
club cell
A non-ciliated secretory bronchiolar epithelial cell (formerly called Clara cell) that produces surfactant components an...
complete tracheal rings
A congenital tracheal anomaly in which the cartilaginous rings form complete circles rather than the normal C-shape, res...
compliance
Measure of lung distensibility, representing the change in lung volume per unit change in pressure.