Using a blood pressure cuff
Why is it important to use the correct tool for the job? use the right tool for the right job in the right way.


Why is it important to use the correct size blood pressure cuff?

The proper cuff and bladder size used in the assessment of blood pressure is important for accurate measurement. The use of a cuff that is too short and narrow for a given arm results in erroneously high blood pressure measurement. Use of a cuff that is too large results in erroneously low blood pressure measures.

How do you know if a blood pressure cuff is the right size?

The width of the bladder of the blood pressure cuff should be approximately 40% of the circumference of the upper arm midway between the olecranon and the acromion. The length of the bladder of the cuff should encircle 80 to 100% of the circumference of the upper arm at the same position.

What are the effects of using a blood pressure cuff that is one size larger than appropriate?

In 1901 Von Recklinghausen2 was the first to observe that a smaller BP cuff gives a falsely high BP reading. Many subsequent studies have shown that a cuff larger than appropriate size can give falsely low measurements (large cuff effect), whereas a smaller one gives falsely high readings (small cuff effect).

What happens if blood pressure cuff is to tight?

If the cuff you’re using doesn’t fit properly, it could squeeze your arm too tightly, causing your skin to fold over and pinch. Not only that, but an improper cuff fit could also lead to error codes on your blood pressure monitor or incorrect — often abnormally high — blood pressure readings.

Does arm size affect blood pressure?

For every 5 cm increase in arm circumference, starting at 35 cm, a 2-5 mmHg increase in systolic blood pressure, and a 1-3 mmHg increase in diastolic blood pressure was observed. The prevalence of arms with a large circumference in the family medicine unit and hypertension clinic was 42% and 41.8%, respectively.

Does cuff size affect blood pressure?

Sheps, M.D. Using a blood pressure cuff that’s too large or too small can give you inaccurate blood pressure readings. Your doctor’s office should have several sizes of cuffs to ensure an accurate blood pressure reading. When you measure your blood pressure at home, it’s important to use the proper size cuff.

What is the largest blood pressure cuff size?

The Lifesource 789AC is the largest Blood Pressure Cuff on the Market.

How would using the medium size BP cuff affect the accuracy of a blood pressure taken in a small adult?

Systolic and diastolic blood pressure were overestimated by 2-6 mm Hg in men and 3-4 mm Hg in women when the cuff was one size smaller than appropriate. In addition, 30-40% of subjects were “misclassified” when blood pressure cutpoints were used to define hypertension.

How will you place the cuff on the patient?

The artery mark indicates proper cuff positioning. Place the cuff over the bare upper arm with the artery mark positioned directly over the brachial artery. The bottom edge of the cuff should be positioned approximately one inch (2-3 cm) above the antecubital fold.

How should a shirt cuff fit?

The cuff should fit comfortably around your wrist but be tight enough that when buttoned it doesn’t slide over your hand. … Our general rule of thumb is that the cuff size should be ~1.75” larger than the measurement of your wrist tight to the skin.

Can a manual blood pressure cuff be inaccurate?

But home blood pressure monitors aren’t always as accurate as they should be. “Home blood pressure monitors may be inaccurate in 5% to 15% of patients, depending on the threshold for accuracy used,” according to Dr. Swapnil Hiremath, a kidney specialist at Ottawa Hospital in Canada.

Which arm is best for blood pressure?

(It’s best to take your blood pressure from your left arm if you are right-handed. However, you can use the other arm if you have been told to do so by your healthcare provider.) Rest in a chair next to a table for 5 to 10 minutes. (Your left arm should rest comfortably at heart level.)

Does arm fat affect blood pressure reading?

Obese patients may be wrongly diagnosed as hypertensive because the arm cuffs used to measure their blood pressure are the wrong size, a new study has found (Blood Pressure Monitoring 2003:8:101-6). The authors say that the larger arm size of obese people results in higher readings when the standard cuff is used.

Where is the blood pressure cuff placed?

Place the cuff on your bare upper arm one inch above the bend of your elbow. Make sure the tubing falls over the front center of your arm so that the sensor is correctly placed.

What type of cuff is used for measuring blood pressure?

A sphygmomanometer has three parts: a cuff that can be inflated with air, a pressure meter (manometer) for measuring air pressure in the cuff, and.

Is blood pressure accurate on lower arm?

Nurses often find that it is faster and easier to take a forearm blood pressure than to search for a larger cuff. Studies have shown that forearm blood pressures generally run 3.6/2.1 mm Hg higher than upper arm blood pressures.

What factors can cause an incorrect blood pressure reading?

  • Stress and Anxiety. …
  • A Full Bladder. …
  • Crossed Legs. …
  • Blood Pressure Cuff Placement. …
  • Eating (Or Not Eating) …
  • Alcohol, Caffeine, and Tobacco. …
  • Too Much Talking. …
  • Cold Temperatures.
What would you expect if a sphygmomanometer cuff designed to be used on a small child's arm was used on an adult's arm?

What would you expect if a sphygmomanometer cuff designed to be used on a small child’s arm was used on an adult’s arm? Measured systolic and diastolic pressures would both be higher than the true pressures. … Measured systolic and diastolic pressures would not be appreciably different from the true pressures.

Why is the first blood pressure reading inaccurate?

Acute meal ingestion, caffeine or nicotine use can all negatively affect BP readings, leading to errors in measurement accuracy. If the patient has a full bladder, that can lead to an error in systolic BP of between 4 mm Hg and 33 mm Hg, compared with the white-coat effect can have an error of up to 26 mm Hg.

Why should the cuff not be inflated beyond 20 to 30 mmHg above expected value?

Why should the cuff not be inflated beyond 20-30 mmHg above expected value? Overinflation of the cuff may result in injury to the patient. What happens to the location of blood when you stand up compared to lying down? Blood will pool in the lower limbs due to gravity.

Why is blood pressure higher on right arm?

Small differences in blood pressure readings between the right and left arm are normal. But large ones suggest the presence of artery-clogging plaque in the vessel that supplies blood to the arm with higher blood pressure.

How should the blood pressure cuff be positioned on the patient quizlet?

How should the blood pressure cuff be positioned on the patient? The hoses on the cuff should be facing anterior and exiting the cuff toward the hand. Normal expected blood pressure for an adult is less than 115/70.

What is shirt cuff?

A cuff is a layer of fabric at the lower edge of the sleeve of a garment (shirt, coat, jacket, etc.) … Cuffs are made by turning back (folding) the material, or a separate band of material can be sewn on, or worn separately, attached either by buttons or studs.

Should a cuff be tight or loose?

Wrap the cuff around your arm so it’s snug but not too tight. As a rule of thumb, you should be able to slip one finger under the cuff.

How big is a shirt cuff?

Though there is no standard cuff size to follow as it is completely dependent on your wrist size, ideally the overall gap between the cuff and the wrist shouldn’t be more than 2 inches (maximum). Most often, it is considered best to stick to an average of 1.5 to 1.75 inches.

Which is more accurate manual or automatic blood pressure cuff?

However, manual blood pressure measurement is not the recommended type of blood pressure monitoring for home use because it requires some training. A study has shown that automated blood pressure monitors seem to provide inaccurate readings in 5 to 15 percent of people.

Which blood pressure reading is most accurate?

Intra-arterial measurement of BP is the most accurate method, capable of giving a continuous picture. Indirect recordings give a rough estimate of intra-arterial pressure but less information about the relationship between individual subjects and their environment.