24-Hour Blood Pressure Monitoring in Sharjah
Medically reviewed by Dar Al Kamal Team
What is 24-hour blood pressure monitoring?
Twenty-four-hour blood pressure monitoring is a test that records your blood pressure many times over a whole day and night while you follow your normal routine. A cuff on your upper arm connects by a thin tube to a small recorder worn on a belt or strap. At regular intervals the cuff inflates by itself, takes a reading and stores it, more often during the day and less often overnight.
The test is often called a BP Holter, but it measures something different from a heart-rhythm Holter monitor. A Holter monitor records the heart's electrical rhythm through chest electrodes. A BP Holter records blood pressure through an arm cuff, with no chest stickers. Some people are asked to have both.
The result is a set of averages: your daytime average, your night-time average and your 24-hour average. These averages describe your usual blood pressure far better than one reading taken in a clinic. At Dar Al Kamal Hospital, Sharjah, 24-hour blood pressure monitoring is fitted and reviewed through the Cardiology department.
Who needs it
Twenty-four-hour blood pressure monitoring answers questions a clinic reading leaves open. Your doctor may suggest it:
- To confirm high blood pressure before long-term treatment starts, since a diagnosis based on averages is more secure
- To check for white-coat hypertension, where readings are high in the clinic because of the setting and normal at home
- To check for masked hypertension, the reverse pattern, where clinic readings look normal while pressure is raised during daily life
- To see whether blood pressure falls at night, as it usually does during sleep; night-time pressure carries particular weight for heart and kidney health
- To check how well treatment is working across the whole day, including the hours before your next dose is due
- To explain symptoms such as dizziness that may come from blood pressure dropping at certain times
The results guide hypertension management, including whether treatment is needed and which time of day suits your tablets. A resting ECG is often done at the same visit to check the heart's response to blood pressure.
What happens
Fitting takes place in the clinic. A member of the cardiology team measures your upper arm to choose the right cuff size, because a cuff that is too small or too large gives inaccurate readings. The cuff usually goes on your non-dominant arm, so you keep your writing hand free. The tube is led over your shoulder or under your clothing to the recorder, and a test reading is taken to check the fit.
You then go home and carry on with a typical day. A normal working day gives the most useful picture, so choose a day that reflects your usual routine rather than a quiet day off.
When you feel the cuff start to tighten:
- Stop moving if you can, and let your arm hang loosely by your side or rest it on a surface
- Keep your arm still and relaxed until the cuff deflates
- Stay quiet for the reading, since talking and moving the arm affect it
You keep a short diary alongside the recording. Note when you go to bed and wake up, when you take your blood pressure medicines, and anything that might change the readings, such as exercise, a stressful meeting, a meal, a nap or symptoms like dizziness. The cardiologist matches the diary to the readings.
The next day you return the recorder, or remove it at home as instructed, and the readings are downloaded and analysed.
Preparing for it
Wear a loose, short-sleeved or thin long-sleeved top that fits comfortably over the cuff, since the cuff stays on under your clothing. Shower before the appointment, because the recorder must stay dry once it is fitted. Take your usual medicines at their usual times unless your doctor gives different advice, and bring your medicine list.
If you are fasting in Ramadan, your eating, sleeping and medicine times shift, which changes your blood pressure pattern. Tell the team, so the recording is planned for a period that answers your doctor's question.
Afterwards
Once the cuff is removed, you carry on as normal. Mild redness or marks on the upper arm from repeated inflation are common and settle quickly. Night-time readings may have woken you briefly, which is expected.
The cardiologist reviews your daytime, night-time and overall averages, how much your pressure dips at night and how the readings relate to your diary. You receive the result at a follow-up appointment, with a plan for treatment, lifestyle changes or further tests where needed. Many people then continue with home readings using their own upper-arm monitor.
Contact the hospital if your arm becomes painful, swollen, numb or bruised under the cuff; remove the cuff if the pain is severe. **Call emergency services or go to the emergency department straight away if you develop chest pain, a severe headache, sudden weakness, confusion or difficulty speaking, or fainting.**
Cost and insurance
Many UAE insurance plans cover 24-hour blood pressure monitoring when a doctor requests it to diagnose or manage high blood pressure, and some ask for pre-approval. The follow-up consultation to discuss the results is usually billed separately. Dar Al Kamal Hospital, Sharjah can help you confirm your cover on 06 599 7777.
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Frequently asked questions
What are the limitations and risks of 24-hour blood pressure monitoring?
Twenty-four-hour blood pressure monitoring carries no serious risk; the cuff can cause temporary discomfort, marks on the arm and disturbed sleep. Its limits are that readings taken while you move or talk can be inaccurate and are sometimes discarded, and a single day may be unusual for you. If too few readings are recorded, the test may need repeating.
How is a BP Holter different from a Holter monitor?
A BP Holter measures blood pressure with an arm cuff that inflates at intervals, while a Holter monitor records the heart's electrical rhythm through chest electrodes. They answer different questions: a BP Holter looks at blood pressure levels across the day and night, and a Holter monitor looks for rhythm problems such as palpitations.
What is white-coat hypertension?
White-coat hypertension is blood pressure that reads high in a clinic because of the setting, while it is normal during everyday life. Twenty-four-hour monitoring identifies it, which helps avoid starting treatment that is not needed, although regular checks continue because the pattern can change.
Can I sleep with the blood pressure cuff on?
You sleep with the cuff on during 24-hour blood pressure monitoring, because night-time readings are an important part of the result. The cuff inflates less often at night, and a brief waking is normal.
Can I shower or exercise while wearing the monitor?
You should avoid showering, bathing and swimming while wearing a 24-hour blood pressure monitor, because the recorder must stay dry. Light activity such as walking is fine; avoid heavy exercise that makes you sweat, and note any exercise in your diary.
Can I drive while wearing a 24-hour blood pressure monitor?
You can usually drive while wearing the monitor, but the cuff may inflate at any time. If it does, keep your arm relaxed and continue driving safely, and note the time in your diary; tell the team if you drive for work so they can advise you.
Is 24-hour blood pressure monitoring covered by insurance?
Many UAE insurance plans cover 24-hour blood pressure monitoring requested by a doctor, and some need pre-approval. Dar Al Kamal Hospital, Sharjah can help you confirm your cover on 06 599 7777.
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