The ankle-brachial index (ABI) is calculated by dividing the systolic BP at the dorsalis pedis by the systolic BP at the brachial artery. Which of the following values would be consistent with mild peripheral arterial disease?

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The mild disease is represented by an ABI of 0.71 to 0.9. Any value above 0.9 is normal. Moderate disease is defined as between 0.7 and 0.41, and severe disease is defined as 0.4 or less. Patients in the "severe" category have a 20% to 25% annual risk of death.

The Ankle-Brachial Index (ABI) Is Calculated by Dividing the Systolic