Central Role of Sodium – Electrolyte Balance (Nursing)

by Jasmine Clark

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    00:01 So, sodium is our most abundant cation in our extracellular fluid.

    00:08 And our sodium salts in our extracellular fluid are going to pretty much make up 280 mOsm of the total 300 mOsm of extracellular fluid of solute.

    00:21 This is the only cation that is exerting the significant osmotic pressure that we see when it comes to the movement of fluids in and out of compartments.

    00:32 It is going to control our extracellular volume and also our water distribution because remember, water follow salt.

    00:42 Changes in the sodium levels are going to affect our plasma volume, our blood pressure, and as well as the volumes of our extracellular fluid and our interstitial fluids.

    00:55 So let's take a closer look at the role of sodium.

    00:59 Sodium that leaks into cells is going to be pumped out against this electrical chemical gradient.

    01:07 Sodium can move back and forth between the extracellular fluid and our body secretions such as our digestive secretions.

    01:16 Also, renal acid-base control mechanisms are going to be coupled to sodium ion transport in the kidneys.

    About the Lecture

    The lecture Central Role of Sodium – Electrolyte Balance (Nursing) by Jasmine Clark is from the course Fluid, Electrolyte, and Acid-base Balance – Physiology (Nursing).

    Included Quiz Questions

    1. Plasma volume
    2. Blood pressure
    3. Extracellular fluid volumes
    4. Interstitial fluid volumes
    5. Lipid solubility

    Author of lecture Central Role of Sodium – Electrolyte Balance (Nursing)

     Jasmine Clark

    Jasmine Clark

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