Renal Glucose Reabsorption

by Carlo Raj, MD

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    Glucose. In that previous graph by chance, if you were a little confused, it absolutely warrants further discussion so much so that we need to take a look at this in great detail. So that whole graph with glucose is just giving you an overview, but if you don't understand or if you haven't understood the depths of glucose handling or renal handling of glucose might be little complicated, but let us now simplify things and be more technical. To begin with, we have filtered load. What does that mean to you? It means that what is coming through the efferent arteriole and approximately 20% which is then your filtration fraction and how much do you have left on the efferent side if it is renal plasma flow? It will be 480. What is the normal renal plasma flow coming in? Approximately 600. So 120 has come through and filtered and we are left with 480. Want you to continue. Set up this picture here that you are seeing on the left and now we are at the level of the peritubular capillaries. You see that big fat red arrow? That is your peritubular capillary and now there is modification is taking place in the nephron. You see that yellow arrow. That represents your nephron. Are we clear? Where we are in a nephron represents the proximal convoluted tubule? The PCT. That is where the majority of our modification of our urine will be taking place at this juncture. Reabsorption, what does that mean to you? You are bringing that substance from the lumen, from the urine back into the blood. What does secretion mean? It means that you are putting the substance into the urine. Let us talk about glucose. Should you normally find glucose in your urine completely...

    About the Lecture

    The lecture Renal Glucose Reabsorption by Carlo Raj, MD is from the course Renal Pathology. It contains the following chapters:

    • Experimental Calculations of Renal Function

    Author of lecture Renal Glucose Reabsorption

     Carlo Raj, MD

    Carlo Raj, MD

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