oxygen saturation

Full Definition

Oxygen saturation (SpO2) represents the percentage of hemoglobin molecules in the blood that are bound with oxygen, measured non-invasively through pulse oximetry. In neonatal care, maintaining appropriate oxygen saturation levels is crucial, as both low and high levels can cause harm. Target ranges vary based on gestational age, with premature infants often maintained at lower levels (88-95%) to prevent oxygen toxicity while ensuring adequate tissue oxygenation.

Usage

Usage note: Often abbreviated as SpO2 or 'sats'; target ranges are age-specific.

In Context

• "Oxygen saturation targets should be individualized based on gestational age." — Clinical care guideline
• "The pulse oximeter displayed oxygen saturation of 92% on room air." — Nursing assessment