20
to be displayed in subsequent readings, we recommend
you to consult your physician in order to determine if it is
cause for concern. Do not try to interpret readings or at-
tempt to treat any condition yourself. Always follow the
guidance of a health professional. If you have an emer-
gency call 911 immediately.
7.2 Joint National Committee (JNC) classification
WARNING:
•
The JNC chart is not intended to replace a medical
diagnosis. This chart is only a reference for different
classifications of blood pressure.
According to JNC Guidelines/Definitions and the latest find-
ings, the test results of adults can be classified and evalu-
ated according to the following chart:
NOTE:
This standard, however, is a general guideline as an in-
dividual’s blood pressure varies among different people,
age groups, etc. Please consult your physician for proper
diagnosis.
The bar graph in the display and the scale on the unit indicate
the range of the blood pressure which has been recorded.
NOTE:
If the values for systolic and diastolic pressure are in two
different JNC ranges (e.g. systolic in the high-normal range
and diastolic pressure in the normal range) the graphic JNC
classification on the unit indicates the higher range (high-
normal in the example described).
Stages of blood pressure levels Systolic (mmHg) Diastole (mmHg) Color
Stage 2 Hypertension > = 180 > = 110 Red
160 –179 100 –109 Red
Stage 1 Hypertension 140 –159 90 – 99 Red
Pre-hypertension 130 –139 85 – 89 Yellow
120 –129 80 – 84 Green
Normal <120 <80 Green
Source: U.S. Department of Health and Human Service, JNC7 (2004), adapted
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