Measurement Method; Accuracy - Walgreens HL158HD Instruction Manual

Measurement Method

HL158HD Automatic Wrist Blood Pressure Monitor measures blood
pressure and heart rate by oscillometric method, meaning the
fluctuations in pressure are measured. Once the cuff is wrapped
around your wrist, just turn on the monitor and inflation
automatically starts. The inflation of the cuff creates pressure around
the arteries inside the wrist.
Within the cuff is a gauge which senses the fluctuations (oscillations)
in pressure. The fluctuation measured represents the degree of
intensity that your arteries contracting with each heart beat, and also
a result of the pressure that the cuff has placed on the wrist. The
monitor measures these contractions and converts the information to
a digital value. This is the result displayed on the monitor screen.
Once the measurement is complete, the cuff will automatically
deflate.

Accuracy

HL158HD Automatic Wrist Blood Pressure Monitor has been clinically
tested against
sphygmomanometer, considered the gold standard in blood pressure
measurement.
All HL158HD Automatic Wrist Blood Pressure Monitors have
performed equivalent to measurements taken with this scientific
device and are within the accuracy limits prescribed by the American
National Standard
Sphygmomanometers.
*We suggest our users have their blood pressure monitor
checked every 2 years. This operation should only be
performed by Manufacturer or by authorized representatives.
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