Omron HEM-7320 User Manual

24
7. Some Useful Information about Blood Pressure
What is Blood Pressure?
Blood pressure is a measure of the force of blood flowing against the walls of the arteries.
Arterial blood pressure is constantly changing during the course of the heart’s cycle.
The highest pressure in the cycle is called the Systolic Blood Pressure; the lowest is the
Diastolic Blood Pressure.
Both pressure readings, the Systolic and Diastolic, are necessary to enable a doctor to
evaluate the status of a patient’s blood pressure.
What is Irregular Heartbeat?
An irregular heartbeat is a heartbeat rhythm that varies by
more than 25% from the average heartbeat rhythm detected
while the unit is measuring the systolic and diastolic blood
pressure.
If such an irregular rhythm is detected more than twice
during measurement, the irregular heartbeat symbol ( )
appears on the display when the measurement results are
displayed.
What is Arrhythmia?
Arrhythmia is a condition where the heartbeat rhythm is abnormal due to flaws in the bio-
electrical system that drives the heartbeat. Typical symptoms are skipped heartbeats,
premature contraction, an abnormally rapid (tachycardia) or slow (bradycardia) pulse.
Normal Heartbeat
Irregular Heartbeat
Pulse
Blood pressure
Blood pressure
Short
Long
Pulse

Omron HEM-7320 Specifications

General

Model	HEM-7320
Category	Blood Pressure Monitor
Irregular Heartbeat Detection	Yes
Body Movement Detection	Yes
Measurement Range Pressure	0-299 mmHg
Accuracy Pressure	±3 mmHg
Accuracy Pulse	±5% of reading
Inflation	Automatic by electric pump
Deflation	Automatic pressure release valve
Measurement Method	Oscillometric method
Cuff Size	22 – 42 cm
Display	LCD
Power Source	4 AA batteries or AC adapter
Device Type	Upper Arm
Measurement Range Pulse	40-180 beats/min
Weight	Approx. 380g without batteries