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What Is Used To Measure Blood Pressure

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How to: Measure Blood Pressure

If a doctor recommends ambulatory blood pressure monitoring, you will need to wear a blood pressure cuff for 24 hours. It’s connected to a small, portable measuring device that automatically measures your blood pressure at set times and records the readings.

Ambulatory blood pressure monitoring is used, for example, to see whether blood pressure levels vary greatly over the course of the day and night or whether they are constantly elevated. During those 24 hours, you can do all of the usual things you would otherwise do over the course of the day. If you are especially active at certain times, you can make a note in a diary. Then the doctor has a better idea of how to interpret the recorded values when evaluating them.

Kasper DL, Fauci AS, Hauser SL, Longo DL, Jameson JL, Loscalzo J. Harrison’s Principles of Internal Medicine. New York: McGraw-Hill; 2015.

Pschyrembel. Klinisches Wörterbuch. Berlin: De Gruyter; 2017.

Stierle U . Klinikleitfaden Kardiologie. Munich: Urban und Fischer; 2017.

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What Is The Pulse Rate

The pulse rate is a measurement of the heart rate, or the number of times the heart beats per minute. As the heart pushes blood through the arteries, the arteries expand and contract with the flow of the blood. Taking a pulse not only measures the heart rate, but also can indicate the following:

  • Heart rhythm

  • Strength of the pulse

The normal pulse for healthy adults ranges from 60 to 100 beats per minute. The pulse rate may fluctuate and increase with exercise, illness, injury, and emotions. Females ages 12 and older, in general, tend to have faster heart rates than do males. Athletes, such as runners, who do a lot of cardiovascular conditioning, may have heart rates near 40 beats per minute and experience no problems.

How Does A Sphygmomanometer Work

A conventional or old school blood pressure monitoring device is the Mercury Sphygmomanometers. An inflatable cuff attached to the blood pressure monitor is placed around the patient’s upper arm while the patient is seated beside a table by resting the arm on the table. A stethoscope is placed below the cuff, around the inside of the elbow.

Air is pumped into the cuff and this increases pressure around the arm and the examiner observers the pulse sounds till the blood flow stops to the arm being examined. Then air pressure is slowly released by deflating the cuff and the point at which the blood flow is restored is recorded as the systolic pressure. The reading indicates the maximum output pressure generated by the heart while its pumping.

The examiner continues to deflate the cuff and usually around the maximum deflation the pulse sounds disappears completely and this is recorded as the diastolic pressure. The reading indicates the pressure in the circularly system when the heart is relaxing.

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Tips To Measure Your Blood Pressure Correctly

To determine whether you have hypertension, a medical professional will take a blood pressure reading. How you prepare for the test, the position of your arm, and other factors can change a blood pressure reading by 10% or more. That could be enough to hide high blood pressure, start you on a drug you don’t really need, or lead your doctor to incorrectly adjust your medications.

National and international guidelines offer specific instructions for measuring blood pressure. If a doctor, nurse, or medical assistant isn’t doing it right, don’t hesitate to ask him or her to get with the guidelines.

Here’s what you can do to ensure a correct reading:

Don’t drink a caffeinated beverage or smoke during the 30 minutes before the test.

Sit quietly for five minutes before the test begins.

During the measurement, sit in a chair with your feet on the floor and your arm supported so your elbow is at about heart level.

The inflatable part of the cuff should completely cover at least 80% of your upper arm, and the cuff should be placed on bare skin, not over a shirt.

Don’t talk during the measurement.

Have your blood pressure measured twice, with a brief break in between. If the readings are different by 5 points or more, have it done a third time.

For more on getting your blood pressure under control, buy Controlling Your Blood Pressure, a Special Health Report from Harvard Medical School.

How Does The Blood Pressure Calculator Work

How to: Measure Blood Pressure

This blood pressure calculator is sourced from the NHS and can instantly help you understand your reading. Enter the two numbers from your reading into the blood pressure checker and click Submit. The blood pressure checker will calculate your reading and summarise what your reading means.

The blood pressure tool will explain your reading and give advice from the NHS on improving or maintaining healthy blood pressure.

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Fundamental Nursing Skills Taking Adult Blood Pressure

Taking an Adults Blood Pressure

HOW TO TAKE A BLOOD PRESSURE IN ADULTS

GENERAL INFORMATION:

What is Blood Pressure?

Blood pressure is the force or pressure that carries blood to all parts of the body. A blood pressure reading is the pressure that blood puts on the walls of arteries. There are 2 parts to a blood pressure. One is called systolic and is the top or the first number in a blood pressure reading. The other number is called the diastolic and is the bottom or second number in the reading. An example of a blood pressure reading is 120/80 , 120 is the systolic number and 80 is the diastolic number.

The systolic number is the peak blood pressure when the heart is beating or squeezing out blood. The diastolic number is the pressure when your heart is filling with blood or resting between beats.

High blood pressure is a systolic number of 140 or higher. Or, a diastolic number of 90 or higher . Normal blood pressure is a systolic number less than 130. And a diastolic number below 85 . High normal blood pressure is a systolic number between 130 to 139. Or a diastolic number between 85-89. .

Why do you need to take your blood pressure? You may need to have your blood pressure taken because you have high or low blood pressure.

How many times a day should you take your blood pressure? Your caregiver will tell you how many times and how you should take your blood pressure. Carefully follow your caregivers instructions.

Put the earpieces in your ears.

Helpful tips:

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  • Tap Date & time. Source: Joe Maring / Android Central.
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  • Tap Time and set it to the correct time.
  • Tap OK. Source: Joe Maring / Android Central.
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    Measuring Blood Pressure With A Sphygmomanometer

    A sphygmomanometer has three parts:

    • a cuff that can be inflated with air,
    • a pressure meter for measuring air pressure in the cuff, and
    • a stethoscope for listening to the sound the blood makes as it flows through the brachial artery .

    The scale of the pressure meter ranges from 0 to 300 mmHg. The pressure meter has a rubber pump on it for inflating the cuff and a button for letting the air out.

    To measure blood pressure, the cuff is placed around the bare and stretched out upper arm, and inflated until no blood can flow through the brachial artery. Then the air is slowly let out of the cuff.

    As soon as the air pressure in the cuff falls below the systolic blood pressure in the brachial artery, blood will start to flow through the arm once again. This creates a pounding sound when the arteries close again and the walls of the vessels hit each other after a heart beat. The sound can be heard by placing the stethoscope close to the elbow. Right when you start to hear this pounding for the first time you can read your systolic blood pressure off the pressure meter.

    The pounding sound stops when the air pressure in the cuff falls below the diastolic blood pressure in the brachial artery. Then the blood vessels remain open. Right when the pounding stops, you can read the diastolic blood pressure off the pressure meter.

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    Blood Pressure Measurement: How to Check Blood Pressure Manually

    KoreTrak, for instance, has a heartrate monitor that can track the users heart rate without necessarily relying on the phones sensors. However, it does not have a GPS to track your movement or location. As long as your android has Bluetooth, you can connect it to KoreTrak effortlessly.

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    How Often Should You Measure Your Blood Pressure

    When and how often you take your readings will depend on your blood pressure. Speak to your doctor or nurse about whats suitable for you.;

    It can be useful to monitor your blood pressure closely to begin with, then less often but at regular intervals.

    When you first start using your home monitor

    When you first start using a home monitor, measure your blood pressure in the morning and evening, every day for a week.

    Take three readings in the morning, one to two minutes apart, and the same again in the evening, and record all the readings. Take an average of the readings, but discard the first one if its much higher than the others. To take an average simply add the two readings together and divide by two. Divide by three if you use all three readings.

    Ignore the first days readings altogether, because they might not be accurate as youre not familiar with your monitor yet.

    At the end of the week you will have a useful picture of what your blood pressure is normally like.

    Your doctor might ask you to keep a record like this when they first think you might have high blood pressure and would like to know more before making a diagnosis.

    After the first week

    Once you have a record of your blood pressure over a week, you can take readings less often once every one to two weeks perhaps. Your doctor or nurse can talk to you about this, theres no need to measure it too often.

    What Is Body Temperature

    The normal body temperature of a person varies depending on gender, recent activity, food and fluid consumption, time of day, and, in women, the stage of the menstrual cycle. Normal body temperature can range from 97.8;degrees;F to 99 degrees;F for a healthy adult. A person’s body temperature can be taken in any of the following ways:

    • Orally. Temperature can be taken by mouth using either the classic glass thermometer, or the more modern digital thermometers that use an electronic probe to measure body temperature.

    • Rectally. Temperatures taken rectally tend to be 0.5 to 0.7 degrees;F higher than when taken by mouth.

    • Axillary. Temperatures can be taken under the arm using a;glass or digital thermometer. Temperatures taken by this route tend to be 0.3 to 0.4 degrees F lower than those temperatures taken by mouth.

    • A special thermometer can quickly measure the temperature of the ear drum, which reflects the body’s core temperature .

    • A special thermometer can quickly measure the temperature of the skin on the forehead.

    Body temperature may be abnormal due to fever or hypothermia . A fever is indicated when body temperature rises about one degree or more over the normal temperature of 98.6 degrees Fahrenheit, according to the American Academy of Family Physicians. Hypothermia is defined as a drop in body temperature below 95 degrees Fahrenheit.

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    Advantages Of Home Testing

    Research has shown that home blood pressure readings are similar to blood pressure recorded by;24-hour ambulatory monitors;.;

    In addition, home blood pressure readings eliminate the white-coat effect .;

    Besides routine monitoring for known or suspected high blood pressure, there are other reasons why your doctor may recommend home blood pressure checks. For instance, they may want to check the effectiveness of a current medication;or a new;low-salt;diet change.;

    They may even use home blood pressure checks to monitor for low blood pressure in certain people or for a condition called masked hypertension .;

    In the end, though, your doctor will use your home blood pressure readings as an adjuvant to office blood pressure readings, not as a substitute. So be sure to continue seeing your doctor for regular check-ups.

    How To Check Your Pulse

    What is the name of the instrument which measures blood ...

    As the heart forces blood through the arteries, you feel the beats by firmly pressing on the arteries, which are located close to the surface of the skin at certain points of the body. The pulse can be found on the side of the neck, on the inside of the elbow, or at the wrist. For most people, it is easiest to take the pulse at the wrist.;If you use the lower neck, be sure not to press too hard, and never press on the pulses on both sides of the lower neck at the same time to prevent blocking blood flow to the brain. When taking your pulse:

    • Using the first and second fingertips, press firmly but gently on the arteries until you feel a pulse.

    • Begin counting the pulse when the clock’s second hand is on the 12.

    • Count your pulse for 60 seconds .

    • When counting, do not watch the clock continuously, but concentrate on the beats of the pulse.

    • If unsure about your results, ask another person to count for you.

    If your;doctor has ordered you to check your own pulse and you are having difficulty finding it, consult your;doctor or nurse for additional instruction.

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    Tips For Checking Your Own Blood Pressure

    There are certain factors that can cause blood pressure to temporarily rise. For example, blood pressure normally rises as a result of:

    Try to avoid as many of these factors as you can when taking your blood pressure. Also, try to measure your blood pressure at about the same time each day. Your doctor may want you to check your blood pressure several times during the day to see if it fluctuates.

    About The Digital Monitor

    The digital monitor is automatic, with the measurements appearing on a small screen. Because the recordings are easy to read, this is the most popular blood pressure measuring device. It is also easier to use than the aneroid unit, and since there is no need to listen to heartbeats through the stethoscope, this is a good device for hearing-impaired patients. One disadvantage is that body movement or an irregular heart rate can change the accuracy. These units are also more expensive than the aneroid monitors.

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    Is There Anything Else I Need To Know About A Blood Pressure Measurement

    If you were diagnosed with high blood pressure, your provider may recommend one or more of the following lifestyle changes.

    • Exercise regularly. Staying active can help lower your blood pressure and also help manage your weight. Most adults should aim for 150 minutes of physical activity per week. Check with your provider before beginning an exercise program.
    • Keep a healthy weight. If you are overweight, losing as little as 5 pounds can lower your blood pressure.
    • Eat a healthy diet that includes fruits, vegetable, and whole grains. Limit foods high in saturated fat and total fat.
    • Reduce salt in your diet. Most adults should have less than 1500 mg of salt per day.
    • Limit alcohol use. If you choose to drink, limit yourself to one drink a day if you are a woman; two drinks a day if you’re a man.
    • Don’t smoke.

    Taking Your Blood Pressure

    How to measure blood pressure using an automatic monitor

    If you have a manual or digital blood pressure monitor, follow the instruction booklet carefully. The following steps provide an overview of how to take your blood pressure using either a manual or digital blood pressure monitor.

    1. Locate your pulse

    Locate your pulse by lightly pressing your index and middle fingers slightly to the inside center of the bend of the elbow. Here you can feel the pulse of the brachial artery. If you cannot locate a pulse, place the head of the stethoscope or the arm cuff in the same general area.

    2. Secure the cuff

    A. Thread the cuff end through the metal loop and slide the cuff onto your arm, making sure that the stethoscope head is over the artery. The lower edge of the cuff should be about 1 inch above the bend of your elbow. Use the Velcro wrap to make the cuff snug, but not too tight.

    B. Place the stethoscope in your ears. Tilt the earpiece slightly forward to get the best sound.

    3. Inflate and deflate the cuff

    If you are using a manual monitor:

    A. Hold the pressure gauge in your left hand and the bulb in your right.

    B. Close the airflow valve on the bulb by turning the screw clockwise.

    C. Inflate the cuff by squeezing the bulb with your right hand. You may hear your pulse in the stethoscope.

    D. Watch the gauge. Keep inflating the cuff until the gauge reads about 30 points above your expected systolic pressure. At this point, you should not hear your pulse in the stethoscope.

    G. Continue to slowly deflate the cuff.

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