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Review of Urea and Renal Function (Nursing)

by Rhonda Lawes

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      Slides Blood Urea Nitrogen BUN.pdf
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    00:00 Hi, welcome to our video series on interpreting lab values.

    00:04 In this one, we're gonna dig much deeper into the causes of abnormal levels of BUN and what you should do about it - those are the key interventions.

    00:13 Now a quick review, remember urea and renal function.

    00:17 Urea is water-soluble, it contains nitrogen and it's a waste product.

    00:23 Now how we end up with it is the liver breaks down protein, you end up with ammonia from that process, so your liver transforms that into urea and sends that it to your kidneys.

    00:34 Now when urea arrives at your kidneys, it's normally filtered by the healthy kidneys from the blood into the urine.

    00:42 Normal levels are 7-20 (mg/dL).

    00:45 If you're getting above 20 (mg/dL), that's where we've got a problem, either organ dysfunction - look we've got liver or renal, excess protein which could be from upper GI bleeding or a high protein intake in your diet.

    00:58 And thirdly, significant dehydration can also cause an elevated BUN.


    About the Lecture

    The lecture Review of Urea and Renal Function (Nursing) by Rhonda Lawes is from the course Blood Urea Nitrogen (BUN) – Renal Assessment (Nursing).


    Included Quiz Questions

    1. A client states, "I noticed that my urine is foamy and dark brown in color."
    2. The nurse notes poor skin turgor
    3. A client states, "I am on a vegan diet."
    4. The nurse obtains a blood pressure of 110/80 mm Hg
    5. A client has a medical history of tuberculosis

    Author of lecture Review of Urea and Renal Function (Nursing)

     Rhonda Lawes

    Rhonda Lawes


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