grunting respirations
Audible expiratory sound produced by partial closure of the glottis, indicating respiratory distress.
Full Definition
Grunting respirations are characterized by an audible expiratory sound created when the infant or child partially closes the glottis during expiration to maintain positive end-expiratory pressure. This compensatory mechanism helps prevent alveolar collapse and maintain functional residual capacity in conditions causing decreased lung compliance or surfactant deficiency. Grunting is a significant sign of respiratory distress in pediatric patients and often indicates serious underlying pulmonary pathology requiring immediate attention. The sound resembles a low-pitched grunt or moan during each expiration.
Usage
Usage note: Often indicates serious respiratory compromise requiring prompt intervention, especially in neonates.
In Context
- "The premature infant developed grunting respirations shortly after birth, prompting evaluation for respiratory distress syndrome." — Neonatal intensive care documentation
- "Grunting respirations ceased after surfactant administration and mechanical ventilation support." — Treatment response notes