What are the symptoms of life-threatening low blood pressure?

A vast network of blood vessels nearly 1,00,000 km long circulates the 5 liters of blood in the body to and from various organs. The flowing blood exerts pressure on the walls of the vessels, and this is measured as blood pressure. 

You have undoubtedly come across the dangers of high blood pressure. But low pressure can also be dangerous. Stay till the end to find out more about it, or head over to the Hindi section to read about low BP symptoms in Hindi.

What is considered low bp?

A healthy individual has blood pressure less than 120/80 mmHg (systolic/diastolic). The systolic pressure is measured when the heart pumps blood to other parts of your body, and the diastolic is when blood fills into the heart. 

When this measurement is as low as 90/60mmHg, the person is suffering from low blood pressure or hypotension. It is primarily observed in people aged 65 or above but can affect people of all ages.

What are the symptoms of low blood pressure?

Symptoms of low blood pressure can be anyone or more of the following:

  • Dizziness
  • Fainting
  • Nausea
  • Fatigue
  • Lack of focus

These are generally common occurrences and can have a precise cause that the doctor can treat immediately. You can also read about the low bp symptoms. However, there can be situations where low blood pressure requires urgent medical scrutiny, as it can be fatal. The symptoms of near-fatal low blood pressure are:

  • Confusion
  • Paling of the skin
  • Shallow breathing
  • Weak pulse

When is it dangerous?

A low range of blood pressure without any associated symptoms is not life-threatening. People regularly experience postural hypotension, the feeling of dizziness when you suddenly stand up from a seated position. People who stand for too long can also feel light-headed. This is known as neutrally mediated hypotension.

However, these conditions can point to some issues in the cardiovascular system. If you experience either of them regularly, you might want to consult your doctor.

Sudden pressure drops caused due to blood loss, allergic reactions, and infections can be hazardous as they can cut off the supply to your brain. You will need to contact the hospital in such a scenario immediately.

What are the conditions that can cause low blood pressure?

  • Pregnancy: Pregnant women’s circulatory system undergoes rapid expansion, and hence their blood pressure generally falls. Once they give birth, their blood pressure goes back to the normal range.
  • Cardiovascular problems: Problems in the heart, such as inconsistent pumping, leaking valves, and cardiac arrest can also lead to low blood pressure.
  • Issues with the endocrine system: If your endocrine glands, such as the thyroid, adrenalin, and pancreas, do not function optimally, it could lead to hypotension.
  • Dehydration: If you do not have sufficient water in your system, it could lead to  
  • Blood loss: An external or internal injury can cause copious amounts of blood to drain out from the body. Unless treated immediately, it can cause irreversible damage to the brain, heart, and other parts of the body.
  • Infection: Infections can cause septic shock, leading to low blood pressure that can be fatal.
  • Medication: Some medications can also cause chronic low blood pressure.

In summary

Low blood pressure is a condition that can be mild and temporary when unaccompanied by certain symptoms. However, it can be dangerous in some cases and will need to be treated immediately to avoid the loss of life. Do consult your doctor if you observe such symptoms in yourself or your loved ones.

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