Biology

Difference between systolic blood pressure and diastolic blood pressure

Main difference

During the cardiac cycle, the minimum blood pressure in the arteries when the ventricles are filled with blood is called the diastolic blood pressure. In the diastolic stage, the heart relaxes and rearranges itself. At the end of the cardiac cycle, the extreme pressure during contraction of the ventricles is called systolic blood pressure. In the systolic stage, the heart pushes blood into the arteries.

Comparative chart

Systolic blood pressure Diastolic blood pressure
Definition The force of blood on the walls of the arteries during the heartbeat is called systolic blood pressure. The force of blood on the walls of the arteries between the time intervals of the heartbeat is called diastolic blood pressure.
Rank usually 120 or less usually 80 or less
Ideal blood pressure 120-139 About 80
Hypertension Above 140 Above 80
Unit of measurement millimeters of mercury (mmHg) millimeters of mercury (mmHg)
Measurement equipment Blood pressure cuff Blood pressure cuff

What is systolic blood pressure?

The heart continually pumps blood into the arteries, so the blood pressure varies (rises and falls) during each heartbeat. Doctors measure blood pressure in double digits, the first being higher than the second. Normal blood pressure for a person is written as 120/80 mmHg. The first number in this expression is called the systolic blood pressure. If the systolic blood pressure will rise above 120 mmHg, then the person will be at risk for hypertension, which is also known as hypertension. Systolic blood pressure in the range 120-139 is called prehypertension, and if the systolic blood pressure rises more than 140 mmHg, the patient will be hypertensive. Systolic blood pressure increases more in older people compared to younger people due to hardening of the arteries and the lack of adaptation of the aorta with age. Systolic hypertension increases the load on the ventricles and causes heart failure, left ventricular hypertrophy, and coronary ischemia. If the systolic blood pressure is going to be less than 120 mmHg, the person is at risk of hypotension (lower blood pressure). The word “systolic” has derived from the Greek language that “drawing or contracting at the same time.” The normal measurement range of systolic blood pressure in children is 95 to 100 mmHg, while for adults it ranges from 90 to 120 mmHg. left ventricular hypertrophy and coronary ischemia. If the systolic blood pressure is going to be less than 120 mmHg, the person is at risk of hypotension (lower blood pressure). The word “systolic” has derived from the Greek language that “drawing or contracting at the same time.” The normal measurement range of systolic blood pressure in children is 95 to 100 mmHg, while for adults it ranges from 90 to 120 mmHg. left ventricular hypertrophy and coronary ischemia. If the systolic blood pressure is going to be less than 120 mmHg, the person is at risk of hypotension (lower blood pressure). The word “systolic” has derived from the Greek language that “drawing or contracting at the same time.” The normal measurement range of systolic blood pressure in children is 95 to 100 mmHg, while for adults it ranges from 90 to 120 mmHg.

What is diastolic blood pressure?

The lower number for the expression of blood pressure (120/80 mmHg) is called the diastolic blood pressure. Diastolic blood pressure is always lower than systolic blood pressure because this force is exerted when the heart is in a relaxed state after pumping blood into the arteries. During this time, the heart fills with new blood and gets oxygen from the lungs. The person will be at risk for high blood pressure if the diastolic blood pressure is in the range of 80-89 mmHg, which is also called prehypertension. If the diastolic blood pressure is above 90 mmHg, the patient will be hypertensive. Isolated diastolic hypertension (IDH) is more common in adults. In most cases, the cause of diastolic hypertension remains unknown, what is also known as essential or primary hypertension. But some studies assume that elevated angiotensin in vessels, improper contact of small muscles in arteries, and genetic factors may be possible reasons. Diastolic hypertension eventually becomes a cause of systolic hypertension, kidney disease, sleep apnea, and thyroid problems. If the diastolic blood pressure reading is less than 80 mmHg, the person may be at risk for hypotension. The word “diastolic” has been derived from the Greek language which means “to separate.” The diastolic measurement in children is approximately 65 mmHg, while in adults it ranges from 60 to 80 mmHg. The word “diastolic” has been derived from the Greek language which means “to separate.” The diastolic measurement in children is approximately 65 mmHg, while in adults it ranges from 60 to 80 mmHg. The word “diastolic” has been derived from the Greek language which means “to separate.” The diastolic measurement in children is approximately 65 mmHg, while in adults it ranges from 60 to 80 mmHg.

Systolic blood pressure VS. Diastolic blood pressure
  • Both systolic and diastolic blood pressure are types of blood pressure.
  • Both types of blood pressure are measured at the same time with the same procedure using the same equipment (sphygmomanometer).
  • The variation in blood pressure causes changes in both types of blood pressure.
  • The variation in both types of blood pressure is important in heart disease, especially the difference in both at the same time.
  • Systolic blood pressure occurs during the contraction of the ventricles during the heartbeat.
  • Diastolic blood pressure occurs early in the cardiac cycle between heartbeats.
  • Systolic blood pressure is the pressure of the blood in the arteries and vessels.
  • Diastolic blood pressure is the pressure of blood only in the arteries.
  • During the systolic stage, only the left ventricular contacts and blood vessels remain in a contracted state.
  • During the diastolic stage, both ventricles of the heart fill with blood while the blood vessels remain in a relaxed state.
  • Measurement of systolic blood pressure is important in old age for the diagnosis of diseases.
  • Diastolic blood pressure measurement is important in adulthood for the diagnosis of any disease.

Leave a Reply

Your email address will not be published. Required fields are marked *

Check Also
Close
Back to top button