Pathogenesis of Essential Hypertension – Role of Defective Pressure Natriuresis & Reset Pressure Natriuresis
Number of View :529PATHOGENESIS OF ESSENTIAL HYPERTENSION. The natural history of essential hypertension evolves from occasional to established hypertension. After a long invariable asymptomatic period, persistent hypertension develops into complicated hypertension, in which target organ damage to the aorta and small arteries, heart, kidneys, retina, and central nervous system is evident. The progression begins with [...]
REGULATION OF NORMAL BLOOD PRESSURE
Number of View :529REGULATION OF NORMAL BLOOD PRESSURE Arterial blood pressure is a product of cardiac output and total peripheral resistance. Cardiac output is influenced by blood volume, which is greatly dependent on body sodium. Thus sodium homeostasis is central to blood pressure regulation. Total peripheral resistance is determined at the level of the arterioles [...]
Haemoglobin Estimation Methods
Number of View :306Methods of Hemoglobin Estimation in the Lab Colorimetric methods The cyanmethaemoglobin method The oxyhaemoglobin method The alkaline-haematin method ____________________________________________________ Sahly method?
Sources of Errors in PCV estimation
Number of View :376Sources of Errors in PCV estimation •Variations of the bore •Difficulty in heat-sealing •Failure to mix the sample of blood adequately •Faulty centrifugation •Parallax error
PCV – Packed Cell Volume
Number of View :377 Packed Cell Volume is a directly measured value obtained from centrifuging blood in a microhematocrit tube in a microhematocrit centrifuge. The PCV is measured as the height of the red cell column in a microhematocrit tube after centrifugation Capillary tube used for PCV measuremnet is 75mm long, 1mm internal diameter Capillary [...]