A blood access device includes (i) a first layer, a bottom surface of the first layer including (a) an adhesive or (b) a hook and loop material for securing the first layer to a patient, a first conductive attachment material located at a top surface of the first layer (ii) a first conductor contacting the first conductive attachment material (iii) a second layer, a second conductive attachment material located at a bottom surface of the second layer, the first and second conductive attachment materials configured to be releasably secured to each other (iv) a second conductor contacting the second conductive attachment material and (v) a blood vessel access member carried by the second layer.
