Why Is My Bottom Blood Pressure Number High?

Medically Reviewed on12/2/2022
high diastolic blood pressure
Isolated diastolic hypertension (IDH) occurs when only your diastolic blood pressure is high

Blood pressureis the force of your blood pushing against the walls of your arteries, which carry blood to other parts of your body. Your blood pressure can be measured using two numbers:

  • Systolic (the number on top):精准医疗ssure exerted when theheartpumps blood throughout the body
  • Diastolic (the number at the bottom):精准医疗ssure exerted when the heart relaxes and refills with blood

When your blood pressure is consistently higher than 130/80 mm Hg, you are considered to havehypertension.

What are the different blood pressure levels?

The table shows different blood pressure levels and conditions.

Table: Blood pressure levels
Blood pressure levels Systolic (mm Hg) Diastolic (mm Hg)
Normal blood pressure Less than 120 Less than 80
Elevated blood pressure or精准医疗hypertension 120年到129年之间 Less than 80
Stage 1hypertension Between 130 to 139 Between 80 to 89
Stage 2hypertension 140 or higher 90 or higher
Hypertensive crisis Higher than 180 Higher than 120

What is isolated diastolic hypertension?

With hypertension, typically both systolic and diastolic blood pressures are elevated. However, isolated diastolic hypertension (IDH) occurs when your systolic blood pressure is normal, and only your diastolic blood pressure is high (over 80 mm Hg).

IDH is an uncommon type of hypertension, accounting for less than 20% of all hypertension cases. Like other types of hypertension, IDH can increase the risk ofstroke,heart disease,heart attack,heart failure,aneurysm,atrial fibrillation,peripheral arterial disease,vision loss, and chronickidney disease.

What causes the diastolic to be high?

Possible causes of isolated diastolic hypertension include:

What causes your blood pressure to suddenly get high?

高血压或high blood pressure (high BP) is a medical condition
高血压或high blood pressure (high BP) is a medical condition

高血压或high blood pressure(high BP) is a medical condition where the pressure in the arteries is persistently elevated. The heart pumps blood into the arteries, and it is circulated to all parts of the body. Hypertension develops when the heart constantly needs to exert higher force to deliver blood to the organs through the arteries. Since a hypertensive heart must work harder to deliver blood, hypertension can increase the risk of心血管病, heart attack, and heart failure. Also, the blood vessels in people with hypertension are narrower, putting them at risk ofstroke, kidney disease, and vision loss.

There are many reasons forhigh blood pressure. Some possible causes include

  • caffeine,
  • acutestressoranxiety,
  • certain medications (such as nonsteroidal anti-inflammatory drugs),
  • combinations of medications,
  • recreational drugs,
  • sudden or acutepain,
  • dehydrationand
  • white coat effect (fear of being in a hospital or doctor’s clinic).

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How to Lower Blood Pressure: Exercise and Tips看幻灯片

What are symptoms of high diastolic pressure?

Hypertension is generally considered a silent killer. Most people with hypertension do not have any symptoms.

It may take many years for the condition to become severe and for symptoms to appear. Many times, these symptoms may be attributed to other issues. The best way to know the blood pressure levels is through regular checkups.

Symptoms of severe hypertension include:

What are the main types of hypertension?

There are two types of hypertension:

1. Primary or essential hypertension

Primary or essential hypertension is when hypertension has no identifiable cause (for example, another disease or condition). It develops gradually over years.

This type of hypertension may be the result of multiple factors, including:

  • Blood plasma volume
  • Hormone activity
  • Genes
  • Physical changes in the body due to age
  • Environmental factors, such as stress and lack ofexercise

2. Secondary hypertension

In some people, hypertension is caused by an underlying health condition. This type of hypertension tends to appear suddenly. Secondary hypertension also generally causes higher blood pressure than primary hypertension.

Secondary hypertension is caused by specific conditions and their complications:

  • Kidney disease
  • Congenital heart defects
  • Congenital defects in blood vessels
  • Obstructivesleep apnea
  • Certain endocrine tumors
  • Adrenal gland tumors
  • Cushing syndrome
  • Congenital adrenal hyperplasia
  • Thyroid problems
  • Pregnancy
  • Obesity
  • Certain medications, such asbirth control pills,coldremedies, decongestants,painrelievers, and some prescription drugs
  • Use of illegal drugs, such ascocaine和安非他明

How is high diastolic blood pressure treated?

Isolated diastolic blood pressure can often be managed with lifestyle modifications,dietary supplements, and medications.

Lifestyle modifications

  • Maintaining a healthy weight
  • Eating a high-fiberdietrich in fruits and vegetables and low in saturated fat and dairy products
  • Reducing sodium in the diet
  • Exercising regularly
  • Quittingsmoking
  • Limiting alcohol use
  • Managing stress
  • Getting adequatesleep
  • Practicing slow deepbreathing
  • Monitoring blood pressure at home

Dietary supplements

Dietarysupplementsthat may help lower blood pressure include:

Medications

If lifestyle and dietary changes are not enough to lower your blood pressure, your doctor may be able to prescribe medications for you.

What are the risk factors of high blood pressure?

Factors that increase the risk of hypertension include:

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Medically Reviewed on12/2/2022
References
Midha T, Lalchandani A, Nath B, Kumari R, Pandey U. Prevalence of isolated diastolic hypertension and associated risk factors among adults in Kanpur, India. Indian Heart J. 2012;64(4):374-379. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3860613/

Mahajan S, Zhang D, He S, et al. Prevalence, Awareness, and Treatment of Isolated Diastolic Hypertension: Insights From the China PEACE Million Persons Project. J Am Heart Assoc. 2019; 8(19): e012954. https://www.ahajournals.org/doi/10.1161/JAHA.119.012954

Alexander MR. Hypertension. Medscape. https://emedicine.medscape.com/article/241381-overview

起到了推动作用。新的高血压Guidelines: JNC 7. Journal Watch. 2003;2(5). https://www.medscape.com/viewarticle/457298

Benetos A, Petrovic M, Strandberg T. Hypertension Management in Older and Frail Older Patients. Circ Res. March 28, 2019;124:1045–1060. https://www.ahajournals.org/doi/10.1161/CIRCRESAHA.118.313236

American Academy of Family Physicians. Hypertension in Adults Over 60. January 2017. https://www.aafp.org/family-physician/patient-care/clinical-recommendations/all-clinical-recommendations/hypertension-over-60.html