Blood Pressure Chart

What is the normal blood pressure range?

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

Blood Pressure Table

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


Categories of Hypertension

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


High Blood Pressure in Children

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.

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).

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


High Blood Pressure during Pregnancy

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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Sinopharm COVID-19 & Latest Influenza Vaccines (Protects against Flu and H1N1 Viruses) / Pre-Departure COVID-19 PCR  Swab & Serology Tests for Travellers, Serology Testing to Certify Vaccination status and Pre-Event COVID Testing. Make your Appointment at Tel: 6694 1661

Flu Subsidy Scheme eligible for Singaporeans & PRs (Pay subsidized rate of $10 for Consultation and Treatment) & Merdeka Generation /Pioneer Generation seniors (Pay subsidized $5) for patients with Acute Respiratory Infections (ARIs).

Pain Management

Asymptomatic patients may not display no symptoms of illness. Vulnerable people should get vaccinated against Influenza as the stop gap until the COVID vaccine is found. The Flu vaccine would protect susceptible people from, as well as exclude the Flu and H1N1 viruses should they start to show URTI or ARI symptoms.

- Latest Influenza Vaccine

The latest Influenza Vaccine is now available. It protects against the Flu and H1N1 Viruses. In the event that a person displays flu-like symptoms after the Flu vaccination, both Flu and H1N1 may be excluded in his diagnosis, and treatment can be sought quickly should the patient have contracted COVID-19.

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 MOH's Swab & Go Home programme. Our clinic can carry out the COVID-19 Swab test for anyone who meets the MOH medical criteria. All individuals aged 13 and above, diagnosed with ARI will be COVID Swab-tested. Cost of Swab test to be borne by Ministry of Health Singapore.

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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Sinopharm COVID-19 Vaccine in Singapore

Sinopharm COVID-19 Vaccine is now available @ MD International Medical Centre. Make a Vaccination or Booster Appointment at Tel: 6694 1661. Learn more about Sinopharm here.

Sinopharm BBIBP-CorV vaccine has now been approved for use by private clinics in Singapore against the COVID-19 virus under the Special Access Route. It is the first China-made vaccine to be approved by the World Health Organisation (WHO).

To date, more than a billion doses of the Sinopharm BBIBP-CorV have been administered. The vaccine has also been approved for use in over 50 countries around the world.

Inactivated vaccines are a tried-and-tested form of vaccine technology which is used in other well-established vaccines, such as the Flu and Hepatitis B vaccines.

If you would like to receive the Sinopharm vaccine or booster, please make your appointment at MD Int'l Medical Centre at Tel: 6694 1661.

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Ministry of Health Recommendation :

  • For persons who have already completed their Primary series with mRNA vaccines and are recommended to get a booster, but are unable to take another dose of mRNA vaccines for medical reasons, they may boost using one dose of Sinopharm vaccine. The booster should be taken six months after mRNA dose 2 (M-M-S).
  • For persons who are unable to take the the 2nd dose of mRNA vaccines for medical reasons, they may complete their vaccination with the Sinopharm vaccine. 2 doses of the Sinopharm vaccine is recommended to complete the Primary series. The 2nd Sinopharm dose  should be taken 28 days after the 1st Sinopharm dose (M-S-S).

For recovered persons who had not completed a primary series before infection:

  • For persons who have recovered from a COVID-19 infection but received 1 dose or none of COVID-19 vaccination prior, they may receive 2 doses of the Sinopharm vaccine (28 days interval between doses), 3 months after the date of infection to complete a primary vaccination series (Recovered-S-S or S-Recovered-S-S or M-Recovered-S-S).
  • For persons who have recovered from a COVID-19 infection and had received 2 doses of Sinovac or Sinopharm vaccines prior, they may receive 1 dose of Sinopharm after 3 months from the date of infection to complete a primary vaccination series (S-S-Recovered-S).

Infectious Diseases


MD International Medical Centre

Medical Services available :

Public Health Preparedness Clinic

National University Health System Primary Care Network

Singapore Ministry of Health Chronic Disease Management Programme (CDMP)

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.

MD International (Singapore) Pte Ltd

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9 Taman Serasi #01-11, Botanic Gardens View

Tel : 65-6694-1661  Fax : 65-6694 1771

Email : contact@mdimc.sg

Clinic hours:

Monday to Friday: 9am-12.30pm / 2pm-6.30pm    Saturday: 9.30am-1pm

*Last registration is 30mins before the closing time

Closed on Sundays & Public Holidays

- Cashless service with most International Insurance companies and Insurance Medical cards are accepted

- Japanese & Mandarin-speaking Doctors and Medical staff

Please contact us at Tel: 6694 1661 to make an appointment.

OUR MEDICAL TEAM

Dr Don Lau – Medical Director

MBBS (Monash), B Med Sc (Hons) (Monash), Dip Pract Derm (Wales, UK)

Fujiwara Takanori DC

The Chiropractic Association Singapore, Japan Chiropractic Register, American Chiropractic Association, California Chiropractic Association

Physiotherapy-trained NBCE The National Board of Chiropractic Examiners

YAMAGATA Chihiro 山懸千尋

Registered Psychologist

Dr Lee Sao Bing – Opthalmologist (in-house Specialist)

MBBS, MMed(Ophth), FRCSEd(Ophth), MD, FAMS

Dr Pang Yoke Teen – ENT (Visiting Consultant)

FRCS (ORL), FRCS(EDIN), (FRCSGLASG), FAMS, MBBS

MD International Medical Centre

Medical Services

Minor Surgical Procedures :

·       Injection for Supraspinatus or Bicipital Tendonitis / Epicondylitis / Trigger finger / Plantar Fasciitis

·       Tendon Sheath Injection

·       Excision of small Skin tumours / Lipomas / Nail bed / Ear lobe cysts / Meibomian cyst

·       Removal of Skin sutures / Skin tags / Sebaceous cysts / Various foreign bodies / Corneal foreign body

·       Liquid Nitrogen Therapy

·       Treatment of Plantar Warts / Calluses / Corns / Ganglions

·       Splinters under nails

·       Olecranon and Pre-patellar Bursitis

·       Ear syringing

·       Embedded earring stud

Medical Conditions Treatable with Therapy:  

  • Head & Neck – Neckaches/ Spondylosis/ Wry Neck/ Whiplash/ Headaches/ Migraine/ Facial Palsy
  • Back – Back Strain/ Slipped Disc/ Scoliosis/ Sciatica/ Spondylosis/ Spondylolisthesis/ Spondylolysis
  • Shoulder – Frozen Shoulder/ Rotator Cuff Tear/ Impingement Syndrome
  • Elbow – Tennis Elbow/ Golf Elbow
  • Hip / Knee – Anterior Knee Pain/ Runner’s Knee/ Meniscus Injury/ Ligament Injury
  • Foot – Plantar Fasciitis/ Heel Pain/ Metatarsalgia
  • Joint – Arthritis/ Cartilage Wear & Tear/ Osteoarthritis
  • Ligament – Sprains/ ACL Laxity/ Ankle Sprain
  • Muscle – Strains/ ITB Tightness/ Hamstring Tear
  • Tendons – Tendonitis/ Repetitive Strain Injury/ Tendinopathy
  • Sports Injuries
  • Obesity – Exercise & Meal Planning 
  • Post Operation/ Hospitalization
  • Fibromyalgia

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OUR MEDICAL TEAM

Dr Don Lau – Medical Director

MBBS (Monash), B Med Sc (Hons) (Monash), Dip Pract Derm (Wales, UK)

Fujiwara Takanori DC

The Chiropractic Association Singapore, Japan Chiropractic Register, American Chiropractic Association, California Chiropractic Association

Physiotherapy-trained NBCE The National Board of Chiropractic Examiners

YAMAGATA Chihiro 山懸千尋

Registered Psychologist


急性呼吸器感染症と診断されたPR保持者およびシンガポール人の患者さんは、シンガポール政府からの助成金であるFlu Subsidy Schemeがご利用いただけます。

詳しくはお電話にてお問い合わせください。


当院ではMOHが実施している”Swab & Go Home Program”をご案内しています。

MOHの規定・基準を満たす症状がある患者さんへCOVID-19スワブテストをしています。

詳しくはお電話にてお問い合わせください。


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