BIOPAC® Systems, Inc. Logo

NIBP100A single pulse data analysis

The NIBP100A has a data output mode that outputs the blood pressure reading to AcqKnowledge only at the actual time of a successful reading. This results in a data record that contains a single beat approximately every 10-15 sec and a straight line in-between. The following description explains how to obtain continuous systolic and diastolic blood pressure channels from this raw blood pressure data.
The following image shows blood pressure data collected from an NIBP100A in this mode.
Raw NIBP100A data
The arrow in the following picture corresponds to the diastolic blood pressure level. Therefore, it is sufficient to take the minimum of the blood pressure waveform 1 sec after the maximum (which is the systolic pressure) in order to obtain the diastolic pressure reading.
Single NIBP100A beat
Use the measurement boxes to measure two separate channels for systolic and diastolic pressure. Set the measurement boxes so that they contain only two measurements: Max and Min, both from the blood pressure channel (in this screenshot channel 3 is the blood pressure channel):

The Find cycle/Peak feature will identify each cusycle and measure the max and min values. Go to Analysis->Find Cycle/Peak and enter the following settings (Set the correct channel number and the threshold. The threshold level should be less than the systolic blood pressure and higher than the diastolic blood pressure) and click Find all cycles.
Cycle detector - Setup
Cycle detector selection
Cycle detector output
Two new channels will be output. The max channel gives you systolic blood pressure, the min channel diastolic. (Select the Save measurements to Excel to paste the measurements into Excel. If exporting to Excel, set up a time measurement box to export the time of each measurement).
The file should look like this (blood pressure channel on top, max and min below):
Data step 1
Use Analysis->Find Rate to obtain two continuous waveforms with systolic and diastolic blood pressure.
Select the Max waveform (make sure no data is highlighted) and go to Analysis->Find Rate. Set it up as shown in the screenshot below:
Find rate
Repeat the last step for the Min waveform.
The following screen show shows the new channels…rename them from max/min to systolic and diastolic.
Data step 2

Associated Applications

Associated Application Notes

Spotlight On
BIOPAC training

T4 Human Physiology Conference

Early bird savings extended! T4: Tools, Trends, Techniques, and Technology Monday, July 24, 2017 – Wednesday, July 26, 2017 Join BIOPAC for three days of hands-on, small-group human physiology workshops, presented by renowned experts, on the beautiful University of California at Santa Barbara campus in Santa Barbara, California, USA. Who should attend Anyone who records and […]

View All
Latest News

News Citations—Respiration and Cardiovascular Activity

BIOPAC provides software and hardware that allow for research teams to record and analyze respiration activity in physiological experimentation. Here are a few notable studies in monitoring respiration and cardiovascular activity. The coupling between peripheral microcirculation and slow breathing: The purpose of this study was to investigate the coupling of breathing movements and microcirculatory blood […]

BIOPAC on 60 Minutes | Brain Hacking with Anderson Cooper

CBS News | 60 Minutes | Brain Hacking APRIL 9, 2017| Why can’t we stop looking at our smartphones? And are the designers of the apps and content on them using brain science to keep us hooked? Anderson Cooper reports.   BIOPAC users Larry D. Rosen, Ph.D. and Nancy A. Cheever, Ph.D. from California State […]

Read All
Request a Demonstration
Request a Demonstration