Low blood pressure Reading

Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps. If this reading is, lower than this range is considering as hypotension reading.

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Blood pressure

Before going into the details of hypotension range of reading, we first know about what blood pressure is and what this reading informs us.

In a blood pressure reading there are two numbers one over the other they are:

  • Systolic pressure: The first number in a pressure reading that refers to the amount of pressure in the arteries, when the heart pump blood to facilitate blood circulation to the entire body.
  • Diastolic pressure: The second number in a pressure reading that refers to the amount of pressure in the arteries when the heart is at rest between beats.

Although one can get an accurate blood pressure reading at any given time, pressure is not static. It can vary considerably in a short amount of time, sometimes from one heartbeat to the next, depending on body position, breathing rhythm, stress level, physical condition, medications you take, what you eat. & drink, and even time of day. Pressure is usually lowest at night and rises sharply on waking.

Low blood pressure reading/range

Hypotension is much harder to quantify; current guidelines identify normal pressure as 120/80. Some medical experts define low blood-pressure readings as a value that is lower than below said values:

  • 90 systolic pressure or
  • 60 diastolic pressure

Even pressure reading with just only one number (systolic or diastolic) in the low range is enough to consider it as low blood pressure. For example, if one has a systolic pressure of perfect 120, but diastolic pressure of 50 is considering having hypotension.

Too low blood pressure reading/range

If the blood pressure drops well below low blood pressure range to a level of:

  • Systolic pressure below 60 or
  • Diastolic pressure below 40

Then it is considering as too low blood pressure.

Dangerously (High) low blood pressure

If the blood pressure fall dangerously below low blood pressure range, which is dangerous to the individual is considering as high (dangerous) low blood pressure. The blood pressure reading that is considering being high-low blood pressure if:

  • Systolic pressure drops below 50 or
  • Diastolic pressure drops below 33

A sudden fall in pressure can be more dangerous; a change (drop) of 20 mm Hg from 130 to 110 systolic can cause dizziness and fainting. This is because the brain fails to receive an adequate supply of blood.

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