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About Blood Pressure
A. AHA Blood Pressure Classifications:
Standards for assessment of high or low blood pressure without
regard to age, have been established by the American Heart
Association (AHA 2017), as shown in the chart.
BLOOD PRESSURE CATEGORY
HYPERTENSIVE CRISIS
(consult your doctor immediately)
HIGH BLOOD PRESSURE
(HPERTENSION STAGE 2)
HIGH BLOOD PRESSURE
(HYPERTENSION STAGE 1)
ELEVATED
NORMAL
However, this chart is not exact for classification of blood
pressure and it's intended to be used as a guide in understanding
non-invasive blood pressure measurements. Please consult with
your physician for proper diagnosis.
B. Variations in Blood Pressure:
Individual blood pressures vary greatly both on a daily and a
seasonal basis. These variations are even more pronounced in
hyper tense patients. Normally the blood pressure rises while at
work and is at its lowest during sleeping period.
(Hyper-tense means a person who has high blood pressure
symptom.)
The graph below illustrated the variations in blood pressure over
a whole day with measurement taken every five minutes.
The thick line represents sleep. The rise in blood pressure at 4 PM
(A in the graph) and 12 AM (B in the graph) correspond to an
attack of pain.
SYSTOLIC mmHg
(Upper Number)
HIGHER THAN 180
140 or HIGHER
LESS THAN 120
(Direct arterial pressure recording in unrestricted man.
Beven, Honour & Stott: Clin. Sci. 36:329. 1969)
-4-
AND/OR
OR
130 ~ 139
OR
120 ~ 129
AND
AND
DIASTOLIC
mmHg
(Lower Number)
HIGHER THAN
120
90 or HIGHER
80 ~ 89
LESS THAN 80
LESS THAN 80
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