There is provided an apparatus (12) for use with a wearable cuff (14). The wearable cuff (14) is for use in measuring blood pressure. The apparatus (12) is configured to acquire a plurality of pressure signals. Each of the plurality of pressure signals are indicative of a pressure in the wearable cuff (14) during a period for measuring blood pressure. The apparatus (12) is configured to, for each of the plurality of acquired pressure signals, determine a measure of a quality of the acquired pressure signal based on one or more parameters derived from artifacts identified in the acquired pressure signal. The apparatus (12) is also configured to determine a measure of a quality of the wearable cuff (14) based on the determined measures of the quality of the acquired pressure signals.
