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Q. Pathophysiology of mitral stenosis?
Normally there is no pressure gradient between left atrium and the left ventricle during diastole. However, as the valve orifice size decreases pressure gradient develops across mitral valve in diastole and the mean left atrial pressure increases. Increase in left atrial pressure would cause increase in the pulmonary artery wedge pressure. Increase in pulmonary artery wedge pressure would cause interstitial congestion by way of Starling's forces and this presents as symptoms of dyspnoea. Further rise in pulmonary artery wedge pressure causes pulmonary edema and pulmonary arterial hypertension. In some patients there will be disproportionate rise in pulmonary artery pressure due to vasoreactivity of pulmonary arteries. As the pulmonary artery systolic pressure increases further the right ventricle fails and features of right heart failure would ensue.
Carbohydrate characteristic chemical features include: Select one: a. the potential to form multiple hydrogen bonds. b. the existence of one or more asymmetric centers.
Define about the Column chromatography? In column chromatography, a tube is filled with the material constituting the stationary phase, plus a solvent (mobile phase). The gener
A lot of hemodynamic information including maximum and mean velocity, maximum and mean pressure gradients and pressure half time can be obtained from Doppler trace that helps in
Q. Which is the brain region that receives conscious sensory information? Which is the brain region that triggers the voluntary motor activity? In the brain conscious sensory i
An account of characters of mollusca
Explain the Direct Surface Agar Plating Method? In the direct surface agar plating method, molten agar is placed on to the surface to be assessed. Upon hardening, it is incubat
Making a rock collection A collection of the common rocks found in the community can be made by asking every pupil to bring in single piece of rock. Explain to the pupils that
Describe the Developmental Periods of coronary artery diseases? The development of coronary artery disease like many other diseases can be divided into the following periods:
Collenchyma are one of the three major cell types in the plants; are elongated and have thicker walls than parenchyma cells and are usually arranged in strands; gives support and
Define Stripping Perforation - Types of Root Perforation It is latral perforation caused by over instrumentation through a thin wall of the root. Most common on the in
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