00:00
Hi, welcome to our video series
on diabetes.
00:04
The question I have
for you today is,
what is insulin resistance?
Well, it sounds deeper than it is,
but it is an important concept
for all nurses to know about.
00:15
Because it's an early warning sign.
00:18
Note the skull and crossbones.
I put up there for you to remember.
00:22
Now, you've seen this slide before,
because it's a critically
important concept.
00:27
Insulin resistance happens
right here during prediabetes.
00:31
Remember, this can last
on an average of up to
six and a half years.
00:36
And this is where
we can make a difference.
00:38
So you understanding
insulin resistance
helps make you a more effective
clinical decision maker.
00:45
I love this.
Resistance is futile.
00:48
I told you I have a bit of a weird
sense of humor,
but anything that makes a concept
stick in your mind,
I'm willing to do it.
00:56
So in insulin resistance,
insulin is present even elevated,
but the cells just can't
use the insulin
to absorb the glucose
for energy into the cells.
01:07
So the blood sugar rises,
and rises, and rises.
01:11
You see, those are the
three key points
about insulin resistance
and we're going to use them
as an introduction to you now.
01:18
That will apply these three points
at the end of the series again
to help you see
how much you've learned.
01:24
Okay, so let's start
from the bloodstream.
01:26
I have some really fun
illustrations for you in this.
01:30
So let's take a look at it.
01:31
Here is what a normal blood vessel
would look like, right.
01:34
So you've got the
layers on top and bottom
and we've got what flows
through the middle.
01:40
So we're going to start right here.
01:42
And let's break this down.
01:44
Now we're going to add
the red blood cells.
01:47
It's like magic.
See them right there?
Those are the red discs.
01:51
Now I'm going to add
white blood cells.
01:54
There you go.
01:55
Obviously, they are white discs.
01:57
Next up
platelets.
02:00
Okay, these are representative
of all the types of blood cells
in your body.
02:05
Now, I know there's five
different types of white cells,
but work with me here.
02:09
So you've got red cells,
white cells, and platelets.
02:13
This is what you normally see
in the bloodstream.
02:16
All these cells are made
by your bone marrow.
02:18
Next up, now look what's different
in the bloodstream.
02:23
Those look like little cubes,
because that's what they are.
02:26
We put that in there
to remind you of blood sugar.
02:28
So think of them as like
little sugar cubes.
02:31
Now, I know you know,
that's not what they
really look like.
02:34
But for the purpose
of this graphic,
it's going to help you think
blood sugar.
02:38
So this is a relatively
low blood sugar.
02:41
But look what happens
when you eat a delicious meal.
02:45
There you go.
02:46
We've got a lot more glucose
in the bloodstream.
02:50
So this is what a normal
amount of glucose would look like
after a meal.
02:54
So this is what's going to cause
or trigger the pancreas
to release insulin.
03:00
Whoa, what's different here?
When I should see a lot of these
gray type triangles.
03:08
So for a patient
who doesn't have prediabetes,
the pancreas will release
the amount of insulin needed
to lower the blood sugar.
03:15
And it's going to help the glucose
get into the cells.
03:18
So look what you have here,
the red cells, the white cells,
the platelets,
you have extra glucose because
you've just eaten a meal.
03:27
And now you see the insulin
that's been secreted
by the beta cells
in the pancreas
to help control that
blood sugar
and get it into the cells
for energy.
03:36
So what's different for a patient
with insulin resistance?
Let me show you.
03:43
Woah.
03:46
So somebody with insulin resistance
has a lot of extra glucose
and a lot of extra insulin.
03:54
Why?
Because the insulin
can't be used effectively.
03:58
We've got a problem.
03:59
I mean,
look at the differences here.
04:02
Which one is prediabetes?
Yeah, it's the one over here
on the right hand side.
04:08
This is someone who clearly has
developed insulin resistance.
04:12
Let's break down
what the differences are.
04:14
Compared the red cells,
white cells, platelets,
those are about the same.
04:18
But I want you to look at the amount
of glucose in the normal,
and compare to prediabetes.
04:24
Look at the amount of insulin
compared to the normal
or nondiabetic client
and the one with prediabetes.
04:31
Okay, that's a really
graphic difference.
04:34
So, I wanted you
to have a visual,
so that's really solid
in your mind.
04:39
Now we're going to review
insulin resistance
step by step.
04:43
Remember, the insulin is present,
even elevated,
the cells can't use the insulin
to absorb the glucose for energy.
04:50
That's why you got so much
glucose and insulin
bumping around there.
04:54
So the result is blood sugar
rises, and rises, and rises.