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When you detect unusually high readings during pregnancy,
you should measure again after at least four hours. If the
reading is still too high, consult your doctor or obstetrician.
Physical activity including eating, drinking, and smoking as well
as excitement, stress, and many other factors can influence
blood pressure results.
HOW TO EVALUATE YOUR BLOOD PRESSURE
The World Health Organization (WHO) has created the
following guide for assessing high blood pressure (without
regard to age or gender). It is important to note that various
factors (e.g. diabetes, obesity, smoking, etc.) also need to be
considered. Consult with your physician for an accurate
assessment and diagnosis of your health condition.
BLOOD PRESSURE
CLASSIFICATION
Systolic BP
mmHg
Diastolic BP
mmHb
COLOR
INDICATOR
Optimal
< 120
< 80
Green
Normal
120 - 129
80 - 84
Green
High-Normal
130 - 139
85 - 89
Green
Grade 1 Hypertension
140 - 159
90 - 99
Yellow
Grade 2 Hypertension
160 - 179
100 - 109
Orange
Grade 3 Hypertension
> 180
> 100
Red
WHO/ISH Definitions and Classifications of Blood Pressure Levels
Source: Chalmers J et al. WHO-ISH Hypertension Guidelines Committee. 1999
World Health Organization - International Society of Hypertension Guidelines for
the Management of Hypertension. J Hypertens, 1999, 17:151-185
This chart is not intended to provide a basis for any type of
diagnosis or emergency assessment; this chart only depicts
different classifications of blood pressure. Consult your
physician for an interpretation and diagnosis based on your
blood personal pressure results.