desaturation
Pronunciation: dee-sat-your-AY-shun
Decrease in oxygen saturation levels below normal range, typically monitored via pulse oximetry.
Full Definition
Desaturation refers to a decrease in oxygen saturation levels in the blood below the normal range for the patient's condition and gestational age. In neonatal care, desaturation is commonly monitored through continuous pulse oximetry and is often defined as oxygen saturation falling below 88-90%, though target ranges vary based on gestational age and clinical condition. Desaturation episodes may be associated with apnea, bradycardia, feeding intolerance, or respiratory compromise. Frequent or severe desaturation events require investigation of underlying causes and may necessitate supplemental oxygen, respiratory support, or other interventions.
Usage
Usage note: Often abbreviated as 'desat' in informal clinical communication; distinguish from hypoxia (tissue oxygen deficiency).
In Context
- "The preterm infant experienced frequent desaturation episodes requiring increased oxygen supplementation." — progress note
- "Monitor for desaturation events during feeding and adjust feeding schedule if necessary." — nursing care plan