Glucose – Substance in Urine (Nursing)

by Prof. Lawes

My Notes
  • Required.
Save Cancel
    Learning Material 2
    • PDF
      Slides UA Visual Chemical Exam.pdf
    • PDF
      Download Lecture Overview
    Report mistake

    00:00 Okay.

    00:01 Now let's look at the next part of your results.

    00:04 So look at this.

    00:04 Some of these may be present.

    00:06 So there might be some glucose, some your virgin, some blood, some protein.

    00:11 You've got the whole list there and we've got a cheat sheet for you at the end that puts this all together.

    00:17 But some of these may be present in your urine, and it's okay.

    00:22 We're not worried about it.

    00:23 Let's look at glucose in your urine.

    00:25 Normal levels of glucose would be less than or equal to 130.

    00:30 So glucose is normally filtered by the glomerulus.

    00:33 What is the glomerulus? Yeah, it's that tangle of capillaries that's right inside of Bowman's capsule and it's all connected up to the tubules and your kidneys.

    00:43 So glucose is normally filtered by the glomerulus, but almost completely reabsorbed in the proximal tubule.

    00:51 So when we say that, that's great to have the definition, but I want you to picture it.

    00:55 So you have that picture in your mind of what a Marius looks like.

    00:58 It's a tangle of capillaries.

    01:00 Inside of Bowman's capsule. Right.

    01:03 And that is connected to the tubules.

    01:06 So when it says that glucose is almost completely reabsorb in the tubule, that means it comes out of the filtrate, back into the body circulation.

    01:15 It should not be leaving the body in the urine.

    01:19 So it's okay to have less than or equal to 130.

    01:23 But if you've got more of that, we've got a problem.

    01:27 Now glycol Surya means you've got glucose, usually around 180 to 200.

    01:33 Normal is less than 130.

    01:35 Once you hit 180, you get a diagnosis.

    01:38 So there's that word again, urea.

    01:40 That means urine.

    01:42 Whatever comes in front of that means what's in the urine.

    01:45 Oh, glucose.

    01:46 So that's why glucose.

    01:47 Urea means a too high of a level of glucose in your urine.

    01:52 That means the filtered load of glucose exceeds your kidneys ability to reabsorb it. Huh.

    01:59 I wonder who would have too much glucose in their blood to the point where the kidneys couldn't reabsorb it? Yeah, you're right.

    02:09 Let's look at the possible causes.

    02:10 Ding, ding, ding, ding, ding.

    02:11 Number one, diabetes mellitus.

    02:14 Or if you prefer mellitus, however you want to say it, that's who's going to have too much blood sugar.

    02:22 Right.

    02:22 People with diabetes.

    02:24 That is the that's the risk.

    02:26 And the cause of diabetes is an elevated blood glucose level.

    02:30 So when that blood is heading on into the kidney, it is over saturated with glucose.

    02:36 It is more than the kidneys can or should reabsorb, which is why it tries to get rid of some of it in the urine.

    02:45 So if someone has glucose here, we would expect they have diabetes.

    02:49 Now, Cushing's syndrome, we're back to that endocrine system.

    02:53 If a patient has Cushing's syndrome, this happens with someone who's received high dose corticosteroids.

    02:59 So not somebody who usually has an inhaler.

    03:02 Talking about somebody who's been on pretty high dose glucocorticoid therapy, either taking it by a pill or I.V., they tend to have more systemic results.

    03:14 But remember, they end up with those weird side effects like moon face, facial hair, mood swings, all kinds of weird stuff.

    03:20 But Cushing's syndrome looks like Cushing's disease because they have excess glucocorticoid.

    03:29 So remember, glucocorticoids come from my adrenal glands, right? They come from the adrenal cortex.

    03:36 But when I give them to you as a medication, then I can cause Cushing's syndrome.

    03:41 It's like your adrenal gland said, Hey, party.

    03:44 And it just starts shooting out way too much.

    03:47 Well, in Cushing syndrome, we did that to you.

    03:51 You're welcome. No charge.

    03:53 Cushing syndrome happens when a patient receives excess high doses of glucocorticoids because we're trying to suppress inflammation somewhere in their body that messes with their protein, fat and sugar metabolism.

    04:06 So that's why you end up with excess levels of glucose in your urine.

    04:12 If someone's on glucocorticoid therapy, their blood sugar is usually elevated.

    04:17 If you've got a diabetic on glucocorticoid therapy, their blood sugars can go crazy.

    04:23 Now, we also have issues with liver and pancreatic diseases and something we call Fanconi Syndrome.

    04:30 Now you can follow that away is fun trivia.

    04:33 The most important point I want you to take away are diabetes, Cushing's and then your liver and pancreatic diseases.

    04:42 Then Cooney's we put on there, but we're not even going to delve into it.

    04:45 It's just something interesting for you to know.

    04:48 But number one, take away diabetes.

    04:50 Second one, Cushing's syndrome.

    04:53 And make sure you got to know that that's caused by glucocorticoid medications.

    04:58 And then liver and pancreatic disease, because those are key players with endocrine and hormone.

    About the Lecture

    The lecture Glucose – Substance in Urine (Nursing) by Prof. Lawes is from the course Introduction to Urinalysis – Renal Assessment (Nursing).

    Included Quiz Questions

    1. There is too much glucose for the tubules in the nephrons to reabsorb
    2. The glomerulus is allowing glucose to filter out through its capillaries
    3. The tubules in the nephrons are damaged
    4. There is a breakdown of ketone bodies in the blood
    1. A client receiving high doses of prednisone daily
    2. A client diagnosed with gastric ulcer
    3. A client receiving high doses of furosemide daily
    4. A client who has adrenal insufficiency

    Author of lecture Glucose – Substance in Urine (Nursing)

     Prof. Lawes

    Prof. Lawes

    Customer reviews

    5,0 of 5 stars
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1  Star