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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.
African horse sickness African horse sickness (AHS) is a highly fatal insect born viral disease of equidae caused by an Orbivirus (family Reoviridae) and characterized by sever
Q Does RNA molecule have two polynucleotide chains like the DNA? Only DNA has two polynucleotide chains. The RNA is formed by just one polynucleotide chain.
Q. What are the factors which influence the spoilage of meat? Can you list a few? Ans. Sure enough, you should be able to enumerate these having learnt about them earlier
If a codon is CDC, what proportion of nucleotide changes in the third position result in a new amino acid? If the codon is AGG, what proportion of changes in the first position res
Q. Imaging Techniques to test stress? A screening exam with M-mode and limited Doppler should be performed at the start of the test, but a detailed echo examination is usually
Give the results of DistaE Dissection ? Results : For acute dissection of different parts of aorta, the mortality is reported as 9 to 33 per cent. In the International Regis
Why do you think the mitochondria contain their own DNA (circular) and have a double membrane?
Lactase non-persistence is an example of a genetic trait that has been influenced by cultural factors.Domestication of animals by humans began approximately 10 000 years ago. Farm
· If we are in dangerous areas, water, gas and electricity should be turned off quickly and we should move to a higher level of ground. · It s
Pericardiocentesis : This is usually done by the cardiologist. It is better done with ECG and haemodynamic monitoring. Subxyphoid route is preferred with the patient positio
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