Lung cancer. Your risks may vary depending on your general health and other factors. Ask your healthcare provider which risks apply most to you. Talk with him or her about any concerns you have. Your healthcare provider will explain the procedure to you. Make sure to ask any questions you have about the procedure. If a finger probe is to be used, you may be asked to remove fingernail polish.
You may have your procedure as an outpatient. This means you go home the same day. Or it may be done as part of a longer stay in the hospital. The way the procedure is done may vary.
It depends on your condition and your healthcare provider's methods. In most cases, pulse oximetry will follow this process:. A clip-like device called a probe will be placed on your finger or earlobe.
Or, a probe with sticky adhesive may be placed on your forehead or finger. A small, electronic device called a pulse oximeter is clipped onto a part of the body, usually a fingertip.
The device emits light that passes through the fingernail, skin, tissue, and blood. On the other side of the finger, a sensor detects and measures the amount of light that passes through the finger without getting absorbed by the tissue and blood.
Using that measurement, the device calculates the oxygen saturation of the blood. Pulse oximetry offers many advantages over traditional methods of measuring blood oxygen levels.
Whereas traditional methods usually involve drawing a sample of arterial blood—a potentially painful experience for patients that requires around 15 minutes, at minimum, to analyze blood samples—pulse oximetry is noninvasive and provides near-immediate readings.
At the same time, pulse oximetry is less precise than conventional methods, such as arterial blood gas testing. Also, it does not provide as much information on other blood gases e.
Today, pulse oximeters are used across a broad range of health care settings. In general practice, they are frequently used to quickly assess someone's general health, for instance, during a routine physical examination.
Outside of general practice, pulse oximetry is most frequently used to monitor patients with lung and heart disorders, who are at risk of low levels of blood oxygen. In clinical settings, they are routinely used in the following situations:. When pulse oximeters are used at home, it has usually been by people with known lung conditions, who may regularly monitor their blood oxygen saturation levels with guidance from their doctors. This reading estimates the concentration of oxygen in your blood.
In some circumstances, these products may provide inaccurate measurements or no measurements at all. This often occurs when there is low blood flow to the finger such as when the fingers are cold or during hand movement even with minimal motion such as shaking.
In addition, many of the products on the market are of low quality and do not interface with smart phones to store, manage, and share data. Reference 1 iData Research. Market for Patient Monitoring Equipment. Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page. What does a Pulse Oximeter do?
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