Blood Pressure Chart

What is the normal blood pressure range? 正常血压范围是多少？

Use the Blood Pressure Chart to assess if you have a healthy blood pressure (BP). Various hypertension definitions are provided.

Blood Pressure Table 血压表

Blood Pressure Classification

Systolic BP (mmHg)

Diastolic BP (mmHg)

Normal blood pressure range

High-Normal blood pressure

Grade 1 Hypertension

Grade 2 Hypertension

Isolated Systolic Hypertension

< 130

130-139

140-159

> 159

>139

< 80

80-89

90-99

> 99

<90

* Based on Singapore Ministry of Health Clinical Practice Guidelines

Pre-Hypertension to Hypertension Risks & Effects

Hypertension Symptoms & Treatment, Blood Pressure monitoring, BP Chart

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Categories of Hypertension 高血压的类别

The various categories of blood pressure are defined according to blood pressure values for both diastolic and systolic blood pressure readings.

Hypertension is defined as Diastolic pressure > 80mmHg and Systolic blood pressure > 130mmHg.

Isolated Systolic Hypertension is defined as Systolic blood pressure >139mmHg in the presence of a Diastolic blood pressure < 90mmHg. It is most frequently seen in elderly people.

Essential hypertension is the presence of sustained hypertension in the absence of underlying, potentially correctable renal, adrenal or other factors.

Mild Hypertension - Mildly hypertensive people have almost twice the risk of vascular disease compared to people with normal blood pressure. Non-drug measures may be suggested by your doctor if there is no evidence of end-organ damage. If after 6 months or more, these methods have not succeeded, then antihypertensive drug therapy may be necessary.

Severe hypertension has a Diastolic blood pressure > 115mmHg. For people with severe hypertension, their blood pressure may be life-threatening. They must be checked immediately by their doctor for hypertensive complications (eg cardiac failure etc). They are more likely to have an underlying cause (eg renovascular disease). Hospitalization may be necessary for these patients. The opinion of a cardiologist is needed because of the likely risk of serious illness or death.

Refractory hypertension exists where control of the blood pressure has not been achieved despite reasonable treatment for 3 or 4 months. A review of a possible secondary cause by your doctor is appropriate. The uncontrolled hypertension may be due to many possible reasons such as drug-related causes, poor compliance, renovascular hypertension, nicotine (smoking), licorice, caffeine (strong coffee), obesity, excessive alcohol intake, excessive salt intake, renal insufficiency, volume overload or illicit substances etc.

In patients aged 50 or less, the Diastolic level always takes precedence over the Systolic level.

All hypertensive people should attempt to adopt the Self-help High Blood Pressure Treatments.

Causes of Secondary Hypertension

Secondary hypertension (secondary high blood pressure) is high blood pressure that's caused by another medical condition. Secondary hypertension can be caused by conditions that affect your kidneys, arteries, heart or endocrine system.

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How to take Blood Pressure

The classification of hypertension categories should be based on the average of 2 or more blood pressure readings on at least 3 or more occasions.

Measuring Blood Pressure should take the following factors into account :

Apprehension - The patient should be rested for at least 5 minutes and made as relaxed as possible. 'White coat hypertension' refers to elevated blood pressure caused by the anxiety of seeing the doctor's white coat. Affecting up to 25% of patients presenting with mild hypertension, these people have a type of conditioned response to the clinic setting, while their home blood pressure profiles are normal.

Caffeine and blood pressure - Patients should not take caffeine/coffee for 4-6 hours before blood pressure measurement.

Smoking - Patients should also avoid smoking for 2 hours before taking blood pressure.

Eating - Patients should not have eaten for 30 minutes.

Please seek Medical attention as soon as possible if you are unsure of you or your family's health condition.

Health Assessment & Screening Packages

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Health Screening Packages

High Blood Pressure in Children 儿童高血压

The children of parents with hypertension should be closely watched. Those at risk of secondary hypertension eg renal or cardiovascular disease, urological abnormalities and Diabetes Mellitus, should have routine blood pressure measurements.

Those children with visual changes, headaches or recurrent abdominal pain or seizures should also have a blood pressure check regularly.

These children can also follow the Self-help High Blood Pressure Treatments.

National Childhood Immunisation Schedule (NCIS) Singapore @ MD International Medical Centre. Make your child's vaccination appointment at Tel: 6694 1661

Up to $400 per (Parent's) Medisave Account per year can be used for Vaccinations under the National Childhood Immunisation Schedule - Influenza, Pneumococcal (PCV13/PPSV), Human Papillomavirus (HPV2/HPV4), Hepatitis B, Tetanus, Diphtheria & Pertussis (Tdap), Measles, Mumps & Rubella (MMR) and Chickenpox (Varicella).

High Blood Pressure during Pregnancy
怀孕期间的高血压

High blood pressure in pregnancy can be either Preeclampsia (pregnancy induced hypertension) or Essential hypertension. Blood pressure levels normally drop during the second trimester and rise in the third. Hypertensive pregnant women should be properly supervised by their obstetrician.

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Asymptomatic patients may display no symptoms of illness. Vulnerable people should get vaccinated against Influenza which protects susceptible people from, as well as exclude the Flu and H1N1 viruses should they start to show URTI or ARI symptoms.

a. Vaccination decreases the risk of co-infection with COVID-19.

b. Vaccination reduces the burden of respiratory illnesses in the healthcare system.

The latest Influenza Vaccine is now available. It protects against the Flu and H1N1 Viruses. Ministry of Health Safety protocols are adhered to at all times for the safe vaccination of you and your family.

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Up to $400 per Medisave Account per year can be used for Vaccinations under the National Adult & Childhood Immunisation Schedule - Influenza, Pneumococcal (PCV13/PPSV), Human Papillomavirus (HPV2/HPV4), Hepatitis B, Tetanus, Diphtheria & Pertussis (Tdap), Measles, Mumps & Rubella (MMR) and Chickenpox (Varicella)

Part of the National Influenza Sentinel Surveillance programme with MOH. If you have a fever of > 38 degrees with a cough, our clinic is able to test for COVID-19. For children below 12 years old with clinical diagnosis of HFMD (eg fever, oral ulcers, rash), our clinic can test for Hand Foot & Mouth Disease (The tests are for surveillance purposes only).

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The information provided in this website is for knowledge purposes only. It does not constitute medical advice.

Should you encounter any medical problem that you are unsure of, always consult your doctor or health care provider for assistance and medical advice.

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