Pulse Oximeter

Definition
A pulse oximeter is a non-invasive medical device that indirectly measures the oxygen saturation of a patient's blood.  It is a convenient way to measure a patient’s oxygenation level and can help you to assess a pt’s level of hypoxia.

A lighted probe is placed on a finger, toe, or earlobe to measure the percentage of oxygen in the blood. Accuracy is based on adequate blood flow. The reading may be incorrect if probe is too tight or incorrectly placed. 92-100% oxygen saturation is “normal”.  Supplemental oxygen may be needed if oxygen saturations go below 92 %.

• A pulse oximeter is a helpful assessment device to be used in addition to a nursing assessment. A pulse oximeter should not to be the sole assessment of a child’s respiratory status.
• Oximeters are not FDA approved as monitoring devices in the home setting due the high incidence of false alarms.
• Your assessment and observation of the child remains the best way to evaluate changes in the child’s respiratory status.