Flashcards in PulseOX Deck (10):
What 2 things are important to have when trusting the reading from a PulseOx?
The HR matches the palpated pulse.
Peaks and Valleys on the Waveform.
What are 2 EKG conditions can alter a reading from a PulseOx?
PVC-wont give a pulse due to inadequate filling
PEA-Electrical activity from heart that doesn't result in cardiac output.
What is an alternative site for a pulseox when experiencing poor perfusion or hypotension?
the ear due to brain being a priority for blood flow.
At the Sp02 percent is a pulseox not reliable?
What is the accuracy of a pulseox?
plus 3 minus 3
What happens to a pulseox reading in the presence of MetHb?
MetHb levels of 10% or higher will result in SpO2 ~85%
MetHb levels less than 10% will result in SpO2 reduction by ~ ½ of the measured MetHb%
What values can be shown on a Co-Oximeter?
What are the 2 ways a pulseox measures?
Spectrophotometry and photoplethysmography
What are the wavelengths that are read by the pulse ox?
660nm = Red (Deoxygenated Blood)
940nm = infrared (Oxygenated Blood)
So whatever returns the most, means that there is not a lot absorbing it. (less amount of that Cell)