Useful info for blood pressure

 

 

Human Blood Pressure Range Diagram

The 1st Number: Systolic pressure is the pressure generated when the heart contracts.
The 2nd Number:
Diastolic pressure is the blood pressure when the heart is relaxed.

What is Normal Blood Pressure? Buy and use an automatic blood pressure monitor. Compare your BP reading with the numbers on the chart above. Draw a line from your systolic pressure to your diastolic pressure. Is the slope of the line about the same as shown on the chart? Where do YOU fit in? What are your risk factors?
Are your blood pressure readings within the normal blood pressure range?
Should you take anti-hypertension medication to lower your blood pressure?

Normal human daily Blood Pressure Range can vary widely, so any single blood pressure monitor reading is not reliable. BP monitor readings must be taken at different times of day, to determine AVERAGE blood pressure levels over time.
What is important is your AVERAGE BP, or MAP (Mean Arterial Pressure) over time.
Or, where are those numbers sitting MOST of the time?
Normal MAP is about 93 mm of mercury.

Lowering High Blood Pressure Tactics
Download a 1-page printable .PDF file of the
Blood Pressure Chart above.

For the scientists among you: The pressure of 1mm of mercury = 0.019337 PSI. A systolic blood pressure of 2 PSI is good, a systolic blood pressure of 3 PSI is not good.

 

Blood Pressure Range Chart Notes

NORMAL BLOOD PRESSURE
BP READINGS RANGE
HIGH Blood Pressure Symptoms -
Stressed, Sedentary, Bloated, Weak, Failing


Systolic - Diastolic
210 - 120 - Stage 4 High Blood Pressure
180 - 110 - Stage 3 High Blood Pressure

160 - 100 - Stage 2 High Blood Pressure
140 -   90 - Stage 1 High Blood Pressure


140 - 90 - BORDERLINE HIGH
130 - 85 - High Normal
120 - 80 - NORMAL Blood Pressure
110 - 75 - Low Normal
 90 - 60 - BORDERLINE LOW

 60 - 40 - TOO LOW Blood Pressure
 50 - 33 - DANGER Blood Pressure


LOW Blood Pressure Symptoms -
Weak, Tired, Dizzy, Fainting, Coma

 

 
.
Blood Pressure Levels Table
Here is essentially the same information
presented above, in tabular format,
with notes at the bottom.
Comment
Systolic
Diastolic
S - D Delta
MAP
Far, Far, Far
TOO HIGH

Medication Is
ABSOLUTELY
NECESSARY

To Prevent
Heart Attack
and Stroke
230
135

95

167
225
130

95

162
220
130
90
160
215
125
90
155
210
125

85

153
205
120

85

148

200

120

80
147
195
115
80
142
190
115

75

140
185
110

75

135
Way Too High -
Medication Is
STRONGLY ADVISED
180
110
70
133
175
105
70
128
170
105

65

127
165
100

65

122
Too High -
Most Doctors
Will Prescribe Meds

160

100

60
120
155
95
60
115
150
95

55

113
Borderline -
Some Doctors
Will Prescribe Meds
145
90

55

108

140

90

50
107
135
85
50
102
Good


Very Good


Excellent
130
85

45

100
125
80

45

95

120

80

40

93

115
75
40
88
110
70
40
83
105
70

35

82
Children and Athletes
100
65

35

77
95
65
30
75

90

60

30
70
Too Low -
Meds May Be
Required To
Prevent Fainting
(Syncope)
85
55
30
65
80
55

25

63
75
50

25

58
70
50
20
57
Far, Far, Far
Too Low -
MEDICATION
REQUIRED
65
45
20
52
60
45

15

50
55
40

15

45
50
35

15

43
180 60 60 60


 

Notes for the above BP table :

1. Why did I do this? I searched high and low on the Internet, and I could find nothing like this in one place - a Summary of human BP range, the Averages, and the Comments relating to each BP level.

2. How did I get the numbers? I started with the commonly seen "Systolic/ Diastolic pairs" seen in the literature - 200/120, 160/100, 140/90, 120/80 and 90/60. From there, I interpolated and extrapolated all the other numbers. Note that these are AVERAGE relationships. For instance, instead of 140/90, your BP may be 140/100, or 140/80. Each individual will have a unique systolic-diastolic relationship. If your S/D difference varies significantly from the averages shown above, this can be helpful in assessing your particular cardiovascular condition.

3. For comparison purposes, I added the "delta" column, which is the difference between the Systolic and Diastolic pressure readings. This relationship is almost linear, with the exceptions of the 40 delta, the 30 delta, and the 15 delta.

4. As for the comments, I have "averaged" the references made in the literature, since not all doctors agree upon the pressures at which to treat, and how aggressively to treat (multiple medications, type of meds, etc.). You can rest assured that the pharmaceutical companies prefer that you take medication at 135/80, since they sell the meds. Most doctors are not so aggressive. Remember that ALL medications have side effects.
Heart medications have more serious side effects than any other class of prescription drugs.

5. Be aware of the "Circadian Rhythm" cycle. Your Blood Pressure is highly influenced by the time of day. For normal people, the highest BP occurs about midday, and the lowest at about 3-4 AM in the morning. For some people, described as "non-dippers", this early morning BP dip does not occur. For these people, highest blood pressure usually occurs around 6 AM to 9 AM in the morning. Some doctors are not aware of this, and make erroneous assumptions. A non-dipper may see 150/95 in the morning, and 130/85 in the evening. Non-dipping is usually associated with abnormal sleep conditions, such as sleep apnea, heavy snoring, drug and alcohol abuse, etc.

6. One blood pressure reading means very little. The advice to "Have your blood pressure checked once a year" is useless. What time of day? Had you eaten less salty foods recently? Were you relaxed that day, when you are usually much more stressed? Had you recently exercised vigorously? You must check your BP far more often than once a year, especially if you show "borderline" readings. I can produce a very low, or very high blood pressure AT WILL, based upon what I do during the 24 hours prior to the measurement.

7. Beware of "white coat syndrome", which results in a much higher BP reading than normal, due to the authoritative doctor, the foreboding, sterile exam room, and the smells such as alcohol and disinfectant. All this is not relaxing. Some unaware doctors may prescribe medication, when in fact, you don't need it at all. As soon as you leave the office, your BP returns to normal. This is another great reason to use your own automatic BP wrist monitor, so that you come to know your own body, and the effects of stress, food, mood, sleep, and time of day.

8. MAP = Mean Arterial Pressure. Three formulas are used to compute MAP. All three produce very similar results.
Above, I used Method #1 -
MAP = DP + (1/3 (SP - DP))
Ideal Mean Arterial Pressure is defined as 93 mm of mercury, which corresponds to 120/80.

Alternative Method #2 -
Also, MAP = (2/3 DP) + (1/3 SP)

Alternative Method #3
MAP = ((2*DP) + SP) / 3

where SP= Systolic Pressure,
and DP= Diastolic Pressure

 

Disclaimer
The author is not a doctor. I am simply a data analyst.
NO PERSONAL MEDICAL ADVICE IS OFFERED OR IMPLIED.
If you have a heart condition, see a medical professional.
Statements on this page may NOT be correct. These are just my personal thoughts. The sole purpose of this page is to encourage further research on your part. I hope that you have found this high blood pressure information page helpful. Buy and use an automated blood pressure monitor, to track your own heart health.
Thank you very much for your time.

top of page

Tags: blood pressure range, blood pressure chart, normal blood pressure, blood pressure readings,
average blood pressure, high blood pressure, low blood pressure