Diastolic pressure, Biology

Assignment Help:

Palpate the radial or brachial artery pulsation while inflating the cuff to a level of 30 mm Hg above the point at which the brachial or radial artery pulsation disappears. Reinflate the cuff to this pressure and release the pressure (deflate) slowly and steadily at a rate of  2 mmHg/sec. The cuff is deflated fast after the diastolic pressure is recorded. A gap of at least one minute must be given in case the pressure is rerecorded.

What one listens to with the stethoscope are the Korotkoff sounds:

Phase 1 : The first appearance of clear tapping sound. This represents the systolic pressure
Phase 2 : Soft murmurs
Phase 3 : Louder murmurs
Phase 4 : Muffled sounds
Phase 5 : Disappearance of sounds

At what point is the diastolic pressure recorded? Comparative studies with intra arterial measurement shows that it corresponds to Phase 4. However, the diastolic is taken just before disappearance of Phase 5.

What are the conditions where Korotkoff sounds are difficult to hear?  In slow rising pulse of aortic stenosis, shock and in heart failure, it might be difficult to hear these sounds. It helps to ask the patient to clench and unclench the fist 5 or 6 times and listen again.

What is the auscultatory gap? This occurs when after the first appearance of the Kortkoff sound, it disappears, then reappears at a lower pressure. For this reason, it is better that the systolic pressure is noted by the palpation of the disappearance of the radial pulse. The cuff pressure must be raised to a point above this before one starts listening to the Korotkoff sounds. When BP is recorded for the first time, it should be done in both arms. A difference of more than 10 mmHg should raise the suspicion of obstructive lesions in the arterial supply to the upper limb.


Related Discussions:- Diastolic pressure

Fungi, what is the symmetry of fungi?

what is the symmetry of fungi?

Explain about rna molecules, Explain how early RNA molecules might have bee...

Explain how early RNA molecules might have been able to respond to natural selection. Every RNA molecule might have competed with slightly dissimilar RNA molecules for nucleoti

Define investigative techniques in nutritional biochemistry, Define Investi...

Define Investigative Techniques in Nutritional Biochemistry? It is an important component of this manual as it focuses on providing an understanding of biochemical methods, tec

Phylum coelenterata, #questioen..what is the example of outline og phylum c...

#questioen..what is the example of outline og phylum coelenterata

What is the meaning of visuoperceptive disorders, What is the meaning of Vi...

What is the meaning of Visuoperceptive disorders It relates to the way in which brain damage impairs people's ability to adapt to the visual world and the concepts used to trea

Describe about congenital cardiac conditions encountered, Describe about Co...

Describe about Congenital Cardiac Conditions Encountered in Adults ? The entire population of adults with CHD is constituted by patients whose cardiac malformations have a natu

Non-recurrent type, Non-recurrent Type As mentioned earlier it refers...

Non-recurrent Type As mentioned earlier it refers to embryo development in reduced embryo sacs. The mechanisms identified for such cases are: Reduced Pseudogamy : The

What are allosteric enzymes, Allosteric enzymes are those that have more ac...

Allosteric enzymes are those that have more activation center and to which other substances known as allosteric regulators bind. Allosteric regulators can be allosteric inhibito

Differentiate individual atoms true or false, What is the first step normal...

What is the first step normally taken when you look through the oculars? The nuclei of the cheek cells have been stained using a special dye so that they appear purple. What is the

Contractile vacuole - protozoans, Contractile vacuole - Protozoans The...

Contractile vacuole - Protozoans The contractile vacuoles may differ in complexity in various groups of protozoans. In amoebae the vacuoles are carried around in the cytoplasm

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