Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Physical Signs of aortic regurgitation?
Chronic severe aortic regurgitation is characterized by wide pulse pressure and multiple peripheral signs it produces. Sharp rapid upstroke of radial pulse followed by rapid down stroke is called Corrigan's pulse or water hammer pulse and is exaggerated by elevating the wrist. Carotids have two prominent systolic impulses called bisferiens pulse. There may be palpable thrill in carotids due to rapid ejection of increased stroke volume.
Due to rapid run off of blood from aorta in diastole and increased stroke volume, varieties of physician signs are described. Movement of head synchronously with arterial pulsation causes head bob. Auscultation over femoral arteries with gentle compression produces to and fro bruit called Duroziez's sign and it corresponds flow reversal in aorta. The prominent pulse waves may be audible over brachial and other peripheral arteries and are called pistol shot sounds. These interfere with measurement of diastolic blood pressure. In significant aortic regurgitation diastolic blood pressure is usually less than 70 mmHg and systolic blood pressure is elevated causing wide pulse pressure. Normal systolic blood pressure difference between lower and upper limbs of 10-20 mmHg is exaggerated in aortic regurgitation. The difference of more than 60 mmHg suggests severe aortic regurgitation, 40-60 mmHg difference suggest moderate aortic regurgitation and 20-40 mmHg difference mild.
Usually cardiac enlargement is present and left ventricular hyper dynamic apex is palpable outside mid clavicular line. S1 is normal or slightly reduced in intensity. A2 is louder in aortic regurgitation due to aortic root disease while it is muffled in valvular aortic regurgitation. Left ventricular S3 suggest left ventricular dysfunction. Constant ejection click may be audible in bicuspid aortic valve or with root dilatation.
Characteristic murmur is early diastolic murmur which is high pitched and blowing. It is best heard in left parasternal border third left intercostals space at end expiration with patient sitting and bending forward. A cooing or musical murmur suggests everted or perforated cusp (Seagull murmur). A murmur that is better heard on the right side of the sternum suggests aortic root disease. Ejection systolic murmur due to increased systolic flow across aortic valve is common and its presence does not necessarily mean aortic stenosis. Some patients have their cooing early diastolic murmur referred to apex. At apex one may additionally hear Austin Flint (mid diastolic) murmur. This may be due to aortic regurgitation jet pushing the anterior mitral leaflet up and causing relative mitral stenosis or just audibility of low pitched vibrations of aortic regurgitation itself. This needs to be differentiated from associated mitral stenosis. Physical signs of aortic regurgitation are unmistakable, but with cursory and casual examination - one may miss them.
discuss the merits nd demerits of five kingdom classification.
Define Reagents Estimation of Iron in the Solution? 1. Conc. sulphuric acid (iron free) 2. Conc. potassium permanganate solution 3. Saturated potassium persulphate (K 2 S
What is Oxidation and Reduction? Oxidation and Reduction : Most people are familiar with oxidation as it pertains to the rusting of metals. Oxygen grabs electrons from iron
details on phylum protozoa
Q. Since pepsin is a gastric enzyme does it have a basic or an acid optimum pH? What happens to pepsin when it passes into the duodenum? Pepsin acts contained by the stomach so
How do you prevent food borne infection? Prevention of Food borne infections: Avoid consumption of contaminated foods and water Eat properly cooked foods Wash
How are mutagenic agents related to cancer incidence in a population? Is cancer a disease transmitted to the individual offspring? The exposition of a population to mutagenic a
How are the change in the ageing lens occurred in the metabolism? Changes in the Ageing Lens 1) Physical changes: Lens weight increases, light transmission decreases, li
What are the penetrance and the expressivity of a gene? The Individuals that carry a same genotype don't always manifest in an identical manner the correspondent phenotype. The
Q. What are the three main parts of a eukaryotic cell? The eukaryotic cell can be separated into two major portions: the cell membrane that separates the intracellular space fr
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd