This article covers the recommended Sample Rates (in Hz) to determine appropriate acquisition sample rates.  The Sample rate recommendations are based upon heart rate and typical end points being calculated.  

Blood Pressure 

For reporting blood pressure endpoints (systolic, diastolic, and mean blood pressure) the sample rate recommendations is based on heart rate.  

Low Pass Filter

A low pass filter can be used to remove frequency content above 6x (Nyquist theorem) or 10x (Geddes rule) the frequency of interest.  

Reference Publications:

Geddes, L. A. (1991). Handbook of blood pressure measurement. NJ.: Humana Press.

Sarazan, R. D. (2014). Cardiovascular pressure measurement in safety assessment studies: Technology requirements and potential errors. Journal of Pharmacological and Toxicological Methods, 70(3), 210–223. https://doi.org/10.1016/j.vascn.2014.06.003

Left Ventricular Pressure 

For reporting the first derivative of the pressure waveform (dP/dt) to report (dP/dt_min or dP/dt_max, for index of contractility and index of relaxation, respectively) the sample rate recommendations is based on the maximum value of dP/dt, in mmHg/s.

Low Pass Filter

A low pass filter is not recommended to be applied to the LVP signal when dP/dt_max or dP/dt_min is being reported as this is likely to impact the results.   

Reference Publications:

Sarazan, R. D., Kroehle, J., & Main, B. W. (2012). Left ventricular pressure, contractility, and dP/dtmax in nonclinical drug safety assess. Journal of Pharmacological and Toxicological Methods, (66), 71–78. 

Sarazan, R. D. (2014). Cardiovascular pressure measurement in safety assessment studies: Technology requirements and potential errors. Journal of Pharmacological and Toxicological Methods, 70(3), 210–223. https://doi.org/10.1016/j.vascn.2014.06.003