Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff may comprise: a first end and a second end that form a butterfly shape when attached around the patient's finger; a light emitting diode (LED)-photodiode (PD) pair; and a bladder including a pair of openings. The bladder is mountable within the finger cuff such that the pair of openings surround the LED-PD pair, respectively, wherein the patient's finger surrounded in the finger cuff abuts against the bladder such that the bladder and the LED-PD pair are used in measuring the patient's blood pressure by the blood pressure measurement system.