24‑Hour Blood Pressure Monitor – Patient Information

A 24‑hour blood pressure monitor records your blood pressure throughout the day and night. It helps your doctor understand your usual blood pressure outside the clinic.

What to expect

  • A cuff will be placed on your upper arm and connected to a small monitor worn on a belt or shoulder strap.
  • The monitor inflates the cuff every 20–30 minutes during the day and every 30–60 minutes overnight.
  • You can continue normal daily activities but should avoid vigorous exercise.

During the monitoring

  • Keep your arm still and relaxed at your side when the cuff inflates.
  • If the cuff slips, gently adjust it back into place.
  • Do not get the monitor wet—avoid showers, baths, or swimming.
  • Sleep as normally as possible; the cuff may inflate overnight.

Tips for an accurate reading

  • Maintain your usual routine, diet, and medications unless advised otherwise.
  • Avoid heavy lifting or strenuous activity.
  • Keep the monitor on at all times until the test is finished.

After 24 hours

  • Return the monitor to the clinic or collection point as instructed.
  • Your doctor will review the results and discuss them with you at your next appointment.

When to contact the clinic

  • If the cuff becomes painful, the monitor stops working, or you are unsure what to do, please phone the practice.

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