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Vital Signs: Oxygen Saturation (Pulse Oximetry) a. What does “oxygen saturation” mean. b. What is acceptable...

Vital Signs: Oxygen Saturation (Pulse Oximetry)
a. What does “oxygen saturation” mean.
b. What is acceptable range for oxygen saturation.
c. List 5 factors that affect accurate interpretation of Pulse Oxygen Saturation (Sp02).

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Answer #1

a.Oxygen saturation refers to the amount of oxygen present in the blood.In simple it is determined by the presence of the amount of hemoglobin which acts as a binding site to attach oxygen on it.

b.The normal ranges is from 95% to 100%.It is acceptable when the oxygen saturation is above 90% A level lesser than that needs oxygen administration.

c.The factors which can affect the accurate interpretation of pulse oxygen saturation are

  • Wet or moist fingers can give wring reading ,because a moist area can happen due to poor blood supply
  • Severe hypotension
  • Peripheral vasoconstriction
  • Presence of nail paint in the fingers
  • Will give an abnormal re add ing during a cardiac arrest
  • Fault in the technical device
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