Iowa Specialty Hospital

Cardiopulmonary: Overnight Pulse Oximetry

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What is Overnight Pulse Oximetry?

 Overnight Pulse Oximetry device

Overnight Pulse Oximetry, or an oxygen saturation test, measures the amount of oxygen in a patient's blood without the use of a needle. To perform the test, a small sensor is placed on the patient's finger, toe, or ear lobe. The sensor is connected to a machine that displays the oxygen saturation and the pulse rate. The test is entirely painless.

How Will This Test Help Me?

Overnight Pulse Oximetry tests are performed when there is a concern that a patient may have less than the normal amount of oxygen in the blood. This can be done overnight in the patient's own home.

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