| Why
should I measure my blood pressure at home and keep a record
of it?
Measuring
your blood pressure at home and keeping a record of the
measurements will show you
and your doctor how much your blood pressure changes during
the day. Your doctor can use the measurements to see how
your blood pressure medicine is working.
What
equipment do I need to measure my blood pressure?
To
measure your blood pressure at home, you can use either
an aneroid monitor or a digital monitor.
The aneroid monitor has a dial gauge that is read by looking
at a pointer. The cuff is inflated by hand,
by squeezing a rubber bulb. Digital monitors have either
manual or automatic cuffs. The blood pressure reading flashes
on a small screen. Choose the type of monitor that best
suits your needs.
What
are the advantages and disadvantages of the aneroid monitor?
One
advantage of the aneroid monitor is that it can easily be
carried from one place to another. Also,
the cuff for the device has a built-in stethoscope, so you
don't need to buy a separate stethoscope.
It's also easier to manage this way. The unit may have a
special feature that makes it easier to put the cuff on
with one hand. In addition, the aneroid monitor costs less
than digital monitors.
The
aneroid monitor also has some disadvantages. First, it is
a complicated device that can easily be damaged and become
less accurate. The device is also difficult to use if it
doesn't have the special feature--a metal ring--that makes
it easier to put the cuff on. In addition, the rubber bulb
that inflates
the cuff may be difficult to squeeze. This monitor may not
be appropriate for hearing-impaired people, because of the
need to listen to heart sounds through the stethoscope.
What
are the advantages and disadvantages of the digital monitor?
Because
the digital monitor is automatic, it is the most popular
blood-pressure measuring device.
The blood pressure is easy to read, because the numbers
are shown on a screen. Some electronic monitors have a paper
printout that gives you a record of the blood pressure reading.
The
digital monitor is easier to use than the aneroid unit.
It has a gauge and stethoscope that are one unit, and the
numbers are easy to read. It also has an error indicator,
and deflation is automatic.
Inflation of the cuff is either automatic or manual, depending
on the model. This blood pressure monitoring device is good
for hearing-impaired patients, since there is no need to
listen to heart sounds through the stethoscope.
A disadvantage
of the digital monitor is that the accuracy is changed by
body movements or an irregular heart rate. In addition,
the monitor requires batteries. Some models are designed
for use with the left arm only. This may make them hard
for some patients to use.
Can
I use a finger/wrist blood pressure monitor?
Features
to look for in a blood pressure monitor
- The
right cuff size is very important. Ask a medical
professional to tell you the cuff size you need,
based on the size of your arm. Blood pressure
readings will be wrong if your cuff is the wrong
size.
- The
numbers on the monitor must be easy to read.
- If
you are using a stethoscope, you must be able
to hear heart sounds through it.
- Cost
may be an important factor. Since home blood pressure
units vary in price, you may have to shop around.
The most expensive units might not be the best
or the most accurate.
|
How
do I know if my monitoring device is accurate or if I am
using it correctly?
Once
you buy your monitor, take it to your doctor's office to
be checked for accuracy. You should have your monitor checked
once a year. Proper care and storage are also necessary.
Make sure the tubing
is not twisted when the monitor is stored, and keep it away
from heat. Periodically check the tubing
for cracks and leaks.
Ask
your doctor or nurse to teach you how to use your blood
pressure monitor correctly. Proper use of
it will help you and your doctor achieve good results in
controlling your blood pressure.
Understanding
the medical terms
- Blood
pressure is the force of blood against the
walls of the artery.
- Hypertension
means high blood pressure.
- Brachial
artery is a blood vessel that goes from your
shoulder to just below your elbow. You measure
the pressure in this artery.
- Systolic
pressure is the highest pressure in an artery
when your heart is pumping blood to your body.
- Diastolic
pressure is the lowest pressure in an artery
when your heart is at rest.
- Blood
pressure measurement is made up of both the
systolic and the diastolic pressure. It is normally
written like this: 120/80, with the systolic number
first.
|
What
do I need to do before I measure my blood pressure?
- Rest
for 3 to 5 minutes before measuring your blood pressure.
Do not talk.
- Sit
in a comfortable position, with your legs and ankles uncrossed
and your back supported.
- Place
your arm, raised to the level of your heart, on a table
or a desk, and sit still.
- Wrap
the correctly sized cuff smoothly and snugly around the
upper part of your bare arm. The cuff should fit snugly,
but there should be enough room for you to slip one fingertip
under the cuff.
- Be
certain that the bottom edge of the cuff is 1 inch above
the crease of your elbow.
How
do I use an aneroid monitor?
- Put
the stethoscope ear pieces into your ears, with the ear
pieces facing forward.
- Place
the stethoscope disk on the inner side of the crease of
your elbow.
- Rapidly
inflate the cuff by squeezing the rubber bulb to 30 to
40 points higher than your last systolic reading. Inflate
the cuff rapidly, not just a little at a time. Inflating
the cuff too slowly will cause a false reading.
- Slightly
loosen the valve and slowly let some air out of the cuff.
Deflate the cuff by 2 to 3 millimeters per second. If
you loosen the valve too much, you won't be able to determine
your blood pressure.
- As
you let the air out of the cuff, you will begin to hear
your heartbeat. Listen carefully for the first sound.
Check the blood pressure reading by looking at the pointer
on the dial. This number will be your systolic pressure.
- Continue
to deflate the cuff. Listen to your heartbeat. You will
hear your heartbeat stop at some point. Check the reading
on the dial. This number is your diastolic pressure.
- Write
down your blood pressure, putting the systolic pressure
before the diastolic pressure (for example, 120/80).
- If
you want to repeat the measurement, wait 2 to 3 minutes
before reinflating the cuff.
How
do I use a digital monitor?
- Put
the cuff around the arm. Turn the power on, and start
the machine.
- The
cuff will inflate by itself with a push of a button on
the automatic models. On the semiautomatic models, the
cuff is inflated by squeezing the rubber bulb. After the
cuff is inflated, the automatic mechanism will slowly
reduce the cuff pressure.
- Look
at the display window to see your blood pressure reading.
The machine will show your systolic and diastolic blood
pressures on the screen. Write down your blood pressure,
putting the systolic pressure before the diastolic pressure.
- Press
the exhaust button to release all of the air from the
cuff.
- If
you want to repeat the measurement, wait 2 to 3 minutes
before reinflating the cu
|