How Is High Blood Pressure Diagnosed?
Your doctor will diagnose high blood pressure (HBP)
using the results of blood pressure tests. These tests will be done several
times to make sure the results are correct. If your numbers are high, your
doctor may have you return for more tests to check your blood pressure over
time.
If your blood pressure is 140/90 mmHg or higher over
time, your doctor will likely diagnose you with HBP. If you have diabetes or
chronic kidney disease, a blood pressure of 130/80 mmHg or higher is considered
HBP.
The HBP ranges in children are different. (For more
information, see below.)
How Is Blood Pressure Tested?
A blood pressure test is easy and painless. This
test is done at a doctor’s office or clinic.
To prepare for the test:
- Don’t drink coffee or smoke cigarettes for
30 minutes prior to the test. These actions may cause a short-term rise in your
blood pressure.
- Go to the bathroom before the test. Having a full
bladder can change your blood pressure reading.
- Sit for 5 minutes before the test. Movement can
cause short-term rises in blood pressure.
To measure your blood pressure, your doctor or nurse
will use some type of a gauge, a stethoscope (or electronic sensor), and a
blood pressure cuff.
Most often, you will sit or lie down with the cuff
around your arm as your doctor or nurse checks your blood pressure. If he or
she doesn’t tell you what your blood pressure numbers are, you should
ask.
Diagnosing High Blood Pressure in Children and
Teens
Doctors measure blood pressure in children and teens
the same way they do in adults. Your child should have routine blood pressure
checks starting at 3 years of age.
Blood pressure normally rises with age and body
size. Newborn babies often have very low blood pressure numbers, while older
teens have numbers similar to adults.
The ranges for normal blood pressure and HBP are
generally lower for youth than for adults. These ranges are based on the
average blood pressure numbers for age, gender, and height.
To find out whether a child has HBP, a doctor will
compare the child’s blood pressure numbers to average numbers for his or
her age, height, and gender.
For more information, see the National Heart, Lung,
and Blood Institute’s
“A
Pocket Guide to Blood Pressure Measurement in Children.”
What Does a Diagnosis of High Blood Pressure Mean?
If you’re diagnosed with HBP, you will need
treatment. You also will need to have your blood pressure tested again see how
treatment affects it.
Once your blood pressure is under control, you will
need to stay on treatment. “Under control” means that your blood
pressure numbers are normal. You also will need regular blood pressure tests.
Your doctor can tell you how often you should be tested.
The sooner you find out about HBP and treat it, the
better your chances to avoid problems like
heart
attack,
stroke, and
kidney failure. |