00:01
Hi, welcome to our video series
on diabetes.
00:04
In this portion
of the video series,
we're going to talk about
how type 2 diabetes is diagnosed
and what is prediabetes?
Now before we get rolling,
I know you've probably
heard this word
a hundred times
in your course prerequisites
and in nursing school.
00:20
But let's make sure
we're all on the same page.
00:23
Diabetes is a disorder
of glucose metabolism.
00:27
You know, in order to use glucose
for energy inside my cells,
I've got to get the glucose moved
from my bloodstream
into my cell.
00:36
Now there's a disorder
in type 2 diabetes.
00:40
See, they may have insulin,
but their body just can't use it
they are insulin resistance.
00:46
And that's the difference between
Type 2, and Type 1.
00:49
Type 1 really doesn't have
any insulin.
00:52
Type 2 may have insulin,
they just don't use it
very efficiently.
00:56
And eventually
even type 2 diabetics
are probably going to run
very low on insulin
that's available.
01:02
So what happens?
Well, the patient develops
high blood sugar.
01:07
That's what hyperglycemia is.
01:09
So it's so high
that it's going to cause
damage to the patient.
01:12
So it requires treatment.
01:14
So when you're
thinking about diabetes,
recognize it's a disorder of
glucose metabolism.
01:20
That's the problem.
01:22
In type 2,
they have insulin,
they just may not be able
to use it very efficiently.
01:27
And insulin is what helps
get glucose
from the bloodstream
into the cell.
01:32
Well, this develops
into a chronic disease
that impacts
multiple systems.
01:37
Now, look at the top there
you see a picture of your
kidney, an eye, and the heart.
01:41
That's to help you remember
that diabetes can affect
all three of these systems.
01:48
So what bridges the gap?
That's kind of an odd name
and diabetes, isn't it?
Well, we have people who have
normal glucose homeostasis,
they're able to eat food,
their blood sugar goes up,
they take that blood sugar
out of their bloodstream
put it into their cells,
they maintain a
normal glucose blood level.
02:07
Type 2 diabetics have
high blood sugar.
02:10
Prediabetes is the period
before the patient is in, let's say,
full blown type 2 diabetes.
02:17
When we say that,
that means that
they cannot control
their blood sugar's very well.
02:23
So in prediabetes,
the blood glucose levels
are elevated above normal,
but they're not high enough
to meet the diagnostic criteria
for type 2.
02:31
So look at the numbers we put
in the screen there for you.
02:34
You see, normal glucose
is less than 5.7%.
02:37
Now these values refer
to hemoglobin A1c.
02:41
This gives us an idea of what
the average blood sugar was
for this patient
over the last two to three months.
02:48
So normal is less than 5.7%.
02:51
Prediabetes, you're going to be
5.7% up to 6.4%.
02:56
But type 2 diabetes diagnosis
is greater than or equal to 6.5%.
03:02
So you see it matters.
03:04
If your patient is, you know,
5.8 ish in their 5.75%,
they're right at the lower end
of prediabetes.
03:11
But if their blood sugar,
their hemoglobin A1c is
bumping up against 6.3, 6.4
they are much closer to developing
type 2 diabetes.
03:21
Now long term damage can occur
right in that middle section.
03:25
So even in prediabetes,
the patient can be experiencing
damage to their body,
to their heart,
their blood vessels,
even before
they're diagnosed officially
with type 2 diabetes.
03:36
Now, I want to look at
when healthcare team
what do they do when they're
going to diagnose a patient
after they've moved from
prediabetes to type 2 diabetes.
03:45
Let's look at the criteria
they evaluate.
03:48
Now remember,
this is usually a gradual onset.
03:52
Did you realize
that some reports say
the average person has had
type 2 diabetes
for up to six and a half years
before they're diagnosed.
04:02
So they've been a
type 2 diabetic,
they just didn't get diagnosed.
04:06
So think about
the amount of damage
that is possible in their body
before they're even know
that they have an actual problem.
04:14
Because see that patient
is going to experience
elevated high blood glucose
without any symptoms.
04:20
So they won't feel it,
they won't know it necessarily,
but they're still having
the damage occur,
whether they're aware of it,
or not.
04:28
So the symptoms that we recognize
may not even appear until
50 to 80% of the pancreas
is beta cells are damaged.
04:36
So now we're way far along
in the process.
04:40
This is an example of why
wellness is so important.
04:43
Why patients need regular visits
with their healthcare provider
so that they can identify
these risk factors
and screen for them early.
04:50
You want to avoid that
six and a half years of damage
when we could start treating it
and intervening much earlier.
04:58
So let's look at four criteria
they are used
to diagnose diabetes
by the healthcare team.
05:04
First, is hemoglobin A1c.
05:07
The patient doesn't have
to fast for this
because remember, it's an
average of what the blood sugar is
over the past
two to three months.
05:14
Now the next one
also deals with blood sugar,
but the patient has to fast
before this lab work is drawn.
05:21
So both of these are blood tests.
05:23
The first one, tells me
the average blood sugar
over the first
two to three months.
05:27
The second one, tells me
what their blood sugar was
in that moment
after they fasted.
05:34
Now the third test, again,
we're talking about blood sugar,
but this is two-hours
after a meal.
05:39
So this is a plasma glucose level
greater than 200 after a meal.
05:45
The fourth test, this is just
a random plasma glucose,
we will note
what time the patient ate.
05:51
But if you just randomly check it
when they're in the office,
and it's greater than 200,
that's another one
of the criteria.
05:58
So putting these four together
is a pretty solid diagnosis.
06:02
Now, we can actually
diagnose diabetes
usually with just
a hemoglobin A1c,
but these are other three criteria
that help solidify that case.