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Thiazolidinediones (Glitazones) – Oral Antidiabetic Medications (Nursing)

by Rhonda Lawes

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      Slides 07-05 DiabeticMedications III Oral Antidiabetics and Non-Insulin SubQ.pdf
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    00:01 Our fourth family are the glitazones.

    00:04 Now we also call those TZD so either way you'll see that represented in the literature.

    00:10 These drugs do something a little difference, they decrease insulin resistance so they don't tell the pancreas to put out more insulin, they help the body use the insulin that's there be more effective.

    00:22 Now we'll likely use this with the biguanide or with the sulfonylurea so we'll use TZDs with another medication.

    00:30 Now they're not chemically related to those other medications and that's why we can use them together.

    00:35 They're coming at the problem from different angles.

    00:37 You see the name on your screen right there, underline that, pioglitazone, it's the most common one that we use right now so that's why we're gonna dig a little deeper into that.

    00:47 Because it's a TZD, it decreases insulin resistance.

    00:52 That means my skeletal muscles are more likely to uptake that glucose out of the blood stream and get it into my cells for energy.

    01:00 Sadly, it also puts in my adipose tissues so it helps my cells be more likely to take that blood sugar and move it from the blood stream into my cells and that's what we're looking for in attacking insulin resistance.

    01:14 It also might decrease glucose production but predominantly we're gonna look at it taking the blood sugar out of the blood stream and getting it into your cells.

    01:23 Okay, now, the side effects with these, wanna look at, they'll have a headache, they may have like some sinusitis, that's a really odd one, but they might also develop an upper respiratory infection.

    01:36 If the patient has CHF, these medications can also cause fluid retention.

    01:41 Whoa, don't speed by that.

    01:45 If we've got somebody who kind of has a history of congestive heart failure or heart failure, this medication is one we're gonna watch really closely because we don't wanna make that any worse, so that's worth knowing, that's worth making sure that you keep that in mind.

    02:01 Now it might cause hepatotoxicity.

    02:04 So, keep an eye on their liver, you know the signs when someone is starting to have liver problems.

    02:09 They get kind of tired, if you started seeing their skin color change or their urine get darker we know we've got some real problems on board.

    02:18 One odd fact about this one is it does increase the risk for fractures in women.

    02:24 Okay, now we've got a whole lot on that slide, right? And if it wasn't enough for women, we've also got a risk for ovulation.

    02:32 Release of eggs in premenopausal women, whoa, that would really get my attention, but there's so much on this slide, how do we break it down? Well, starting from head to toe, which one of these do you think would be the worst case scenario? I don't like sinusitis, I don't want a respiratory infection and headaches aren't really fun either but if it's gonna increase my risk for fluid retention, that's absolutely one I'm gonna makes sure that I know.

    03:03 So if a patient has a history of heart failure, I wanna be right on top of the risk for fluid retention.

    03:09 Now, the other ones are kind of weird, the woman stuff? So that's likely to stick out on you mind but if I was premenopausal and then found out I got pregnant that would definitely give me a lot of stress.

    03:21 So the risk for fractures, the premenopausal ovulation those are kind of good to know but absolutely for sure I wanna keep in mind it's gonna give me problems with fluid retention if I have a history of congestive heart failure.


    About the Lecture

    The lecture Thiazolidinediones (Glitazones) – Oral Antidiabetic Medications (Nursing) by Rhonda Lawes is from the course Endocrine Medications (Nursing).


    Included Quiz Questions

    1. They decrease insulin resistance and increase glucose uptake by skeletal muscles and adipose cells.
    2. They increase insulin release from the pancreas and increase glucose uptake by skeletal muscles and adipose cells.
    3. They decrease both glucagon release from the liver and insulin resistance.
    4. They decrease both insulin resistance and glucose uptake by skeletal muscles and adipose cells.
    1. TZDs can cause fluid retention and require close monitoring of fluid volumes in a client with CHF.
    2. TZDs can cause upper respiratory infections and require close monitoring to avoid an acute infection.
    3. TZDs can increase the risk for fractures, and a client with osteoporosis should be especially careful while taking this medication.
    4. TZDs can potentially cause hepatotoxicity, and it is important to do close monitoring of liver function while clients are on this medication.

    Author of lecture Thiazolidinediones (Glitazones) – Oral Antidiabetic Medications (Nursing)

     Rhonda Lawes

    Rhonda Lawes


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