हाई बीपी इलाज - सर्वोत्तम परिणाम
Adwww.hcfi.in/heart-diseases-treatment/
Blood pressure readings are measured in millimeters of mercury (mmHg) and are provided as a pair of numbers. For example, 110 over 70 (written as 110/70) systolic/diastolic.
The lower number is the diastolic blood pressure reading. It represents the minimum pressure in the arteries when the heart is at rest. The higher number is the systolic blood pressure reading. It represents the maximum pressure exerted when the heart contracts.
Diastolic
pressure occurs near
the beginning of the cardiac cycle. It is the minimum pressure in the
arteries when the pumping chambers of the heart — ventricles — fill with blood.
Near the end of the cardiac cycle, systolic pressure, or peak
pressure, occurs when the ventricles contract.
As the heart
beats, it pumps blood through a system of blood vessels,
which carry blood to every part of the body. Blood pressure is the force that
blood exerts on the walls of blood vessels. All or any of the events related to
the flow or blood pressure that occurs from the beginning of one heartbeat to
the beginning of the next is called a cardiac cycle. Problems in the cardiac
cycle can cause low or high blood pressure.
Comparison chart
Diastolic
|
Systolic
|
|
Definition
|
It is the
pressure that is exerted on the walls of the various arteries around the body
in between heart beats when the heart is relaxed.
|
It measures
the amount of pressure that blood exerts on arteries and vessels while the
heart is beating.
|
Normal range
|
60 – 80 mmHg
(adults); 65 mmHg (infants); 65 mmHg (6 to 9 years)
|
90 – 120 mmHg
(adults); 95 mmHg (infants); 100 mmHg (6 to 9 years)
|
Importance
with age
|
Diastolic
readings are particularly important in monitoring blood pressure in younger
individuals.
|
As a person's
age increases, so does the importance of their systolic blood pressure
measurement.
|
Blood
Pressure
|
Diastolic
represents the minimum pressure in the arteries.
|
Systolic
represents the maximum pressure exerted on the arteries.
|
Ventricles of
the heart
|
Fill with
blood
|
Left
ventricles contract
|
Blood Vessels
|
Relaxed
|
Contracted
|
Blood
Pressure reading
|
The lower
number is diastolic pressure.
|
The higher
number is systolic pressure.
|
Etymology
|
"Diastolic"
comes from the Greek diastole meaning "a drawing apart."
|
"Systolic"
comes from the Greek systole meaning "a drawing together or a
contraction."
|
- hypotension if the diastolic reading is < 60 mmHg and systolic reading is < 90 mmHg
- Prehypertension if the diastolic reading is 81 – 89 mmHg and systolic reading is 121 – 139 mmHg
- Stage 1 Hypertension if the diastolic reading is 90 – 99 mmHg and systolic reading is140 – 159 mmHg
- Stage 2 Hypertension if the diastolic reading is 100 mmHg and systolic reading is 160 mmHg
Cardiovascular risk in those middle-aged and older is often more accurately predicted by using systolic blood pressure measurements than diastolic blood pressure measurements. Diastolic blood pressure can then be used to better understand the risks identified by systolic blood pressure.