Explain the term blood pressure in technical measurement, Biology

Assignment Help:

Explain the term Blood Pressure in Technical Measurement ?

Following techniques are recommended (JNC VII):
1) Patient should be seated in a chair with their backs supported and their alms bared and supported at heart level.
2) Under special circumstance measuring BP in supine and standing positions may be indicated as in to rule out orthostatic hypotension.
3) Patient should refrain from smoking or ingesting caffeine during the 30 mm preceding the measurement.
4) Measurement should begin after at least five minutes of rest.
5 ) Appropriate cuff size must be used to ensure accurate measurement. The bladder within the cuff should encircle at least 80 percent of arm.
6) Measurement should be taken preferably with a mercury sphygmomanometer.
7) Both Systolic Blood Pressure and Diastolic Blood Pressure should be recorded. The first appearance of sound (Phase I) is used to define SBP and the disappearance of sound to define DBP.
8) Two or more readings separated by two minutes should be averaged if first two readings differ by more that five mmHg, additional readings should be obtained and average.

Guidelines of measurement : Palpatory Method: Systolic blood pressure (SBP) can be measured by gradually compressing the brachial artery while palpating the radial artery. The force required to obliterate the radial pulse represents SBP.

Ausultatory Method: The sphygmomanometer cuff is applied around the arm with its lower edge at least I inch above the antecubital space. The radial pulse is palpated while the cuff is inflated to pressure of 30 mm/Hg above the level at which radial pulsation cannot be felt. The stethoscope (diaphragm) is then placed tightly over the brachial artery and the pressure in cuff as lowered 3 mm/Hg per second until the first Korotkoff sounds occur. This is the Systolic blood pressure. Continue to lower the pressure until the sounds disappear (5th Korotkoff phase). This is the DBP.

Occasionally, the sounds may appear first (SBP) then disappear at a point below 200 mm/Hg (Silent gap) and then reappear and finally disappear (DBP). Its significance is unknown but it may be found in certain patients with hypertension.

Instrumental: Mercury sphygomenometer is still the most accurate device for clinical use; validated electronic devices or aneroid sphygmomanometer be used for home BP recording.


Related Discussions:- Explain the term blood pressure in technical measurement

circulation patterns, Normal 0 false false false EN-IN...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What the henderson-hasselbalch equation expresses, The Henderson-Hasselbalc...

The Henderson-Hasselbalch equation expresses the pH of a solution as: Select one: a. The equilibrium constant of the acid and the dissociated form of the weak acid. b. The

Define essential parts of photocolorimeter - light source, Define Essential...

Define Essential Parts of Photocolorimeter - Light Source? The light source is usually a tungsten lamp, for wavelength in the visible range (320-700 nm) and a deuterium or hydr

What treatment should be used for constrictive pericarditis, Q. What treatm...

Q. What treatment should be used for constrictive pericarditis? Medical Treatment 1) Judicious use of diuretics to alleviate systemic congestion. This may be enough in s

Chordata, what are the two main subdivisions of the phylum chordata

what are the two main subdivisions of the phylum chordata

Define reagents required and methodology for benedict test, Define reagents...

Define reagents required and methodology for Benedict Test? Reagents Required - Sugar solutions of glucose, fructose, galactose, maltose, lactiose, sucrose and starch.

Experiment turn out differently then you expected, If the results of an exp...

If the results of an experiment turn out differently then you expected, what does that mean? A. The experiment was a failure B. You did not follow scientific method C. You should e

Evaluate the magnitude of st depression, Q. Evaluate the Magnitude of ST De...

Q. Evaluate the Magnitude of ST Depression? It is intuitive that the magnitude of ST depression should correlate with the degree of the ischaemia. In patients with left main or

Properties of receptors, Properties of Receptors The receptors collect...

Properties of Receptors The receptors collect information concerning the change in the environment such as temperature, illumination etc. In lower animals, sensory perception

What are the dominate phenotype, There is a population of 100 frogs. 20 are...

There is a population of 100 frogs. 20 are heterozygotes, 30 are homozygous recessive, 25 are homozygous dominate. What is the frequency of the dominate allele? The recessive allel

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd