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Oximetry

Oximetry is a medical test that uses a device called an oximeter to measure the amount of oxygen in the blood (oxygen saturation). A special sensor in a cuff or clip is placed on the end of a person's finger or toe or on the person's earlobe. The sensor measures the amount of oxygen in the blood flowing in the tiny blood vessels.

Decision Points

Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.

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Interactive Tools

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Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.

Symptom Checker

Feeling under the weather?

Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.