Responding to Blood Pressure Changes

Gain confidence in what to do if your loved one has unusual blood pressure readings. First step, don't panic.

Helpful Highlights

  • If there is an unusual blood pressure reading, take your loved one's blood pressure again.

  • Try to uncover if there is a reason for the unusual reading(s).

  • Check recommendations from your loved one's provider and current guidelines.

  • If concerned, call your loved one's provider. If alarmed, call 9-1-1.

Everything you need is all in one place

Helpful app simplifies family caregiving by combining your loved one’s insurance benefits and medical records into one user-friendly platform while enhancing your caregiving skills

Get started for free

Follow these steps when you or your loved one gets an unusual reading when taking their blood pressure, whether higher or lower, regardless of whether an automatic or manual blood pressure cuff is used.

Repeat on the same arm

  1. Note the initial reading

  2. Remove the cuff

  3. Wait 5 minutes

  4. Repeat blood pressure on the same arm


Repeat on the opposite arm

  1. Remove the cuff

  2. Wait 2 minutes

  3. Take a reading on the opposite arm (if feasible)

If an automatic cuff was used for the initial reading and you have a manual cuff and stethoscope available, it can be good to use the manual cuff for the second reading; or vice-versa (if a manual cuff was used the first time, use an automatic cuff for the second reading).

Second reading results

If the second reading is also unusual, try to figure out if there is a reason:

  • missed medications

  • interference with the cuff function

  • anxiety

  • excess caffeine

  • illness

  • recent activity

  • other reasonable explanation

Observe for any other symptoms your loved one is having.

Check their provider's care plan for instructions on what to do in the case of usual blood pressure readings.

Generally, there is no reason to act on a single unusual reading unless your loved one has other symptoms, the provider's care plan has specific instructions, or both readings are significantly higher or lower than normal.

Well, what's significant?

Current guidelines from the on significance are:

  • Systolic (top number) is more than 20 points higher or lower than usual.

  • Diastolic (bottom number) is more than 10 points higher or lower than usual.

  • Systolic under 90 warrants a call to your loved one's provider.

  • Systolic over 180 or Diastolic over 120 is considered a hypertensive crisis and is a medical emergency.

When in doubt or if you're nervous, call their provider.

If alarmed or you believe there may be an emergency, call 9-1-1 or go to the nearest emergency department.


American College of Cardiology (ACC)

American Heart Association (AHA)

Harvard Health

No content in this app, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

About us

Helpful is an app to make caregiving easier. We integrate your loved one’s insurance benefits, medical records and caregiving guides into an immediate, accessible and user-friendly experience. Helpful supports your care needs by eliminating administrative tasks and providing technology to support your caregiving experience.

Get started for free
Elderly man is smiling at his relative caregiver