- This is an non invasive method to monitor the capillary oxygen levels from the periphery of body
- This is always expressed as percentage.
- These are arbitrary numbers which should always be used in conjunction of the clinical presentation of the child
- Finger tips
- Pulse oximetry sensor consists of a red light device and a receiver.
- It is very important that the light and the receiver lie opposite to each other .
- The site should be warm with good blood flow
- If the periphery is cold then try to place a bag of warm water over the limb to warm it up.
- Any excess movement at the limb site can cause aberrant waves and the pulse oximeter to not pick up the saturations. Try to pacify the child for better reading
- Check the site of sensor every hourly to make sure it’s not too tight and not compromising the circulation
- The site of sensor should be changed at least every 2 hours a prolonged placement at a site can cause burns
- Normal range in newborn- can be from 85% to 90% based on time since birth
- Older children 95% to 99%
Low values can be seen in
- Cold periphery