The only required observation of the three is Systolic BP. There are times when a mean arterial pressure needs to be stored also, so it was included. Systolic and Diastolic blood pressures are commonly stored together as a “blood pressure”. These are slices of the component element (ponent) and the value (Observation.value) has been constrained out (cardinality set to 0). The Blood Pressure Panel profile contains three observations, systolic, diastolic, and mean arterial blood pressure.
