Blood Pressure Reading of 58/45 Explained

What does BP of 58/45 means?

According to the blood pressure chart, a reading of 58/45 is classified as low blood pressure, or hypotension.

Low blood pressure is characterized by a systolic (upper) blood pressure reading under 90 mmHg and/or a diastolic (lower) reading under 60 mmHg.

While this reading may be lower than the normal blood pressure range, it is important to note that blood pressure values can vary based on individual factors such as age, gender, and health status.

In many cases, mild hypotension without any accompanying health impairments can be considered normal and does not require immediate medical attention.

Interpretation of a Blood Pressure Reading of 58 over 45

Blood Pressure 58/45 on the blood pressure scale

Blood pressure is measured in millimeters of mercury (mmHg) and is expressed as two numbers, one written above or before the other, such as 58/45 mmHg.

The top number, or the systolic value, represents the pressure in the arteries when the heart beats or contracts. This is the highest pressure in the blood vessels and occurs when the heart pumps blood into the arteries.

Systolic (upper) value of 58 mmHg indicates hypotension (low blood pressure).

The bottom number, or the diastolic value, represents the pressure in the arteries when the heart is at rest between beats. This is the lowest pressure in the blood vessels and occurs when the heart is relaxed and filling with blood.

Diastolic (lower) value of 45 mmHg indicates hypotension (low blood pressure).

It’s important to note that if the systolic and diastolic values fall into different blood pressure categories, you should always consider the higher or worse classification when determining the overall blood pressure classification.

Thus, in the case of 58/45 the overall reading considering both values is in the low blood pressure range.

Blood Pressure 58/45 on the blood pressure chart

Blood pressure 58 over 45 on the blood pressure chart

The blood pressure chart is a useful tool for tracking blood pressure readings over time and identifying any changes or trends. It categorizes blood pressure readings into different stages of hypertension, ranging from low to severe hypertension.

A blood pressure reading of 58/45 falls within the low range on the chart, indicating a hypotension.

It is important to monitor blood pressure regularly, especially for individuals who experience symptoms such as dizziness, lightheadedness, fainting, or blurred vision.

What you should know about blood pressure of 58 over 45


Having a low blood pressure you may experience the following symptoms:

  • Fainting
  • Dizziness
  • Fatigue
  • Blurred vision
  • Nausea
  • Rapid or shallow breathing


Low blood pressure may be caused by a number of factors, including:

  • Dehydration
  • Blood loss
  • Heart problems
  • Endocrine disorders
  • Certain medications, such as diuretics and beta blockers
  • Infection

Prevention and Treatment

If your BP is too low, there are several ways of raising your blood pressure. In brief:

  • Increase your fluid intake by drinking plenty of water or other fluids
  • Increase your salt intake, as sodium helps to retain fluid in the body
  • Eat smaller, more frequent meals throughout the day
  • Avoid standing or sitting for long periods of time without moving

If your blood pressure remains low, it is important to consult with a healthcare provider to determine the underlying cause and appropriate treatment.

BP 58/45 Pulse Pressure

The difference between the top number (systolic) and the bottom number (diastolic) of a blood pressure reading is known as the pulse pressure (PP).

In the case of a reading of 58/45, the pulse pressure equals to 13.

Pulse pressure below 40 mmHg is considered to be low, while a value above 60 mmHg high. Thus, a normal range for pulse pressure is 40 – 60 mmHg.

BP 58/45 Mean Arterial Pressure (MAP)

Mean Arterial Pressure (MAP) is a measure of the average blood pressure in the arteries during a single cardiac cycle. It is calculated by adding two-thirds of the diastolic pressure to one-third of the systolic pressure, and is often used as an indicator of tissue perfusion and organ function.

For a reading of 58/45, the mean arterial pressure equals to 49.3.

A MAP value between 70-100 mm Hg is considered to be within the normal range. Values below this range may indicate poor tissue perfusion, which can lead to organ dysfunction or failure.

Conversely, values above this range may indicate hypertension, which can increase the risk of cardiovascular disease, stroke, and other health problems.

Blood Pressure 58 45 on the blood pressure monitor

Blood Pressure 58 over 45 on the blood pressure monitor


Finally, remember that a single reading of blood pressure should not be used as a definitive reference for a person’s overall health status. This is because there may be issues while measuring , such as incorrect positioning or equipment error, that could lead to an inaccurate reading. Here you can read in more details about how to measure you blood pressure correctly.

In addition, don’t forget when measuring blood pressure that you should also take into account various factors such as age, gender, stress level, medical conditions or even the time at which you take the reading as all of these can affect your blood pressure and its interpretation. To learn more about this topic you can read an article on blood pressure risk factors.

Only constant monitoring of blood pressure over time can provide a more accurate reflection of an individual’s overall state of health. For this purpose either use an app to track blood pressure or a printable blood pressure log sheet.

If this article has provided you with valuable insights, don’t keep it to yourself! Spread the word and share it with others who might also benefit from it. Together, we can create a community of knowledge-sharing and make a positive impact on people’s lives. Thank you for your support!

Medically reviewed by Fomina Tatyana, Cardiologist

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