Abstract: A screening tool includes: a compression body for engaging with a portion of a limb of the patient to be compressed; a compression element for compressing the contact surface against the portion of the patient's limb to be compressed; a measurement element for structurally and functionally engaging with a portion of the limb to be examined, as well as generating, via the optical detection of one or more component(s) of the blood, a measurement signal that is characteristic of an arterial pulse in the portion of the limb to be examined during a measurement phase. The compression element generates a measurement pressure substantially equal to a threshold pressure value during the entire measurement phase, and the screening tool also includes: a calculation element for transmitting a negative signal when the arterial pulse is greater than a threshold diagnostic value, and a positive signal it is lower than the threshold value.