Blood Pressure Monitors

Blood pressure monitors transmit cardiovascular metrics including systolic and diastolic blood pressure readings, heart rate, and irregular heartbeat detection. Each reading is transmitted as a discrete measurement event.

Applicable Devices

• A&D BPM
• Omron BPM
• Tenovi BPM
• Tenovi Cellular BPM
• Welch Allyn 1500 Series BPM
• Welch Allyn 1700 Series BPM

Metrics

Name	API Format	Value 1	Value 2
Blood Pressure	blood_pressure	Systolic BP (mmHg)	Diastolic BP (mmHg)
Heart Rate	pulse	Pulse (beats/minute)	N/A
Irregular Heartbeat	irregular_heartbeat	1 (detected)	N/A

Best Practices

Raw data access — All visualizations should provide clinicians with the option to review the underlying raw data in table or CSV format with ease. This supports clinical documentation workflows and allows verification of trends observed in charts.

Time scope controls — Provide the ability to adjust the timespan of data — allowing clinicians to view an entire day, week, or month while having the ability to zoom into a specific hour. This is critical for correlating changes with clinical events.

Hover tooltips — Data points should display tooltips on mouse-over revealing granular details such as precise timestamps, exact values, and reading context. This allows clinicians to inspect individual measurements without navigating away from the chart view.

Sample patient context

The following visualizations use sample data for a fictional “Patient B” — a 62-year-old with stage 1 hypertension. Over the course of a week, Patient B’s readings trend upward, with one irregular heartbeat event detected on Day 5.

Blood Pressure

Display systolic and diastolic blood pressure readings over time. Two chart approaches are recommended: a dual-line chart for trend visibility, and an overlapping bar chart for individual reading comparison.

Option A: Dual-line chart

Shows systolic and diastolic as two separate lines over time. Best for identifying trends and correlating changes between the two values.

Blood pressure — Patient B (5-day view)

Systolic (mmHg)Diastolic (mmHg)

Spec	Value
Chart type	Dual-line chart (shared Y-axis)
X-axis	Time (day/week/month with zoom to individual readings)
Y-axis	Blood pressure (mmHg), range 60–200
Systolic line	Tenovi blue (#29ADE3)
Diastolic line	Navy (#3478A4)
Threshold	Optional dashed red line at 140 mmHg (stage 1 hypertension)

Option B: Overlapping bar chart

Each reading is shown as two overlapping bars — the taller bar represents systolic, the shorter bar represents diastolic. Both bars start from the baseline (0 mmHg). This approach makes it easy to compare individual readings side-by-side.

Blood pressure — Patient B (5-day view, overlapping bars)

Systolic (mmHg)Diastolic (mmHg)

Spec	Value
Chart type	Overlapping bar chart (both bars start from 0)
X-axis	Time (one bar group per reading)
Y-axis	Blood pressure (mmHg), range 0–200
Systolic bar	Tenovi blue at 85% opacity (#29ADE3) — taller
Diastolic bar	Amber at 85% opacity (#E6A817) — shorter, same width, overlapping
Threshold	Optional dashed red line at 140 mmHg

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Pulse & Irregular Heartbeat

Pulse is displayed as a bar chart with one bar per reading. When an irregular heartbeat is detected during a reading, a prominent red marker is placed on that bar to draw immediate clinician attention.

Irregular heartbeat detection

When irregular_heartbeat = 1, this indicates the device detected an arrhythmia during the reading. This should be displayed with a visually heavy red marker that demands clinician attention. Multiple irregular heartbeat events can be recorded close to one another — the marker alone (without a text label) is sufficient to flag each event without visual clutter.

Pulse — Patient B (5-day view)

Pulse (BPM)Irregular heartbeat detected

Spec	Value
Chart type	Bar chart (one bar per reading)
X-axis	Time (day/week/month)
Y-axis	Pulse (BPM), range 40–120
Bar color	Tenovi blue (#29ADE3)
Irregular HB marker	Red circle with ”!” — placed above the bar. No text label (markers may cluster).
Marker color	#c94444 — visually heavy to demand attention
Marker trigger	irregular_heartbeat = 1 for that reading