Accuracy Study of a Non-Invasive Blood Pressure Cuff in Comparison to an Invasive Radial Arterial Blood Pressure

Inclusion Criteria: * Ability to provide written informed consent or have a legally authorized representative provide written informed consent * Any volunteer subjects ≥ 18 years of age * Subject must have the presence of normal sinus rhythm on ECG * Subject will return for follow-up visit from 5 days to 8 days after study procedure Exclusion Criteria: * Any subject who is unable to provide written informed consent * Any subject with the presence of peripheral vascular disease in either arm * Any subject that demonstrates an initial NIBP screening for a blood pressure distribution range that has already been filled. * Any subject who cannot tolerate 21 repeated BP measurements * Any subjects with clotting or bleeding disorders * Any subjects taking medications that are considered anticoagulants or blood thinners (For example, Clopidogrel, Warfarin, Dipyridamole, Aspirin, and Enoxaparin) * Any subject who is unable to have arterial line placed in the radial artery * Any subject that cannot tolerate 4 fast flushes for the frequency response * Any female subjects pregnant or lactating * Any subject that has previously participated in this study * Any subjects that cannot return 5 to 8 days post study procedure for a follow-up visit