Poor circulation, skin pigmentation, skin thickness, skin temperature, current tobacco use, and fingernail polish can affect accuracy.

If your email program has trouble displaying this email, view as a webpage. Pulse Oximeter Accuracy and Limitations: FDA Safety Communication  Today, the U.S. Food and Drug Administration (FDA) issued a safety communication to inform patients and health care providers that pulse oximeters have limitations and a risk of inaccuracy under certain circumstances. Read the Safety Communication The safety communication provides: Important recommendations for patients and their caregivers on how to use pulse oximeters at home. Recommendations for health care providers on how to use pulse oximeters for better accuracy. Background on pulse oximeters and the FDA's actions to evaluate factors that may affect pulse oximeter accuracy and performance. Instructions for reporting problems with pulse oximeters to the FDA. Questions? If you have questions, contact the Division of Industry and Consumer Education.

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