00:00
Hi, welcome to our series in interpreting lab values.
00:04
Now in this one, we're gonna take an NCLEX level practice
question and I'm gonna walk you through step-by-step
how you can start raising your test
scores in answering these questions.
00:14
Okay so here it is, Mr. Miller has been diagnosed
with COPD, CHF and stage 3 chronic kidney disease.
00:23
Wow, that's a what.
00:24
Okay, he's come to the emergency department with complaints
of shortness of breath and severe swelling in his legs,
which of the following
assessments would you anticipate?
Okay, I want you to go ahead and just do
your normal process and answer that question.
00:37
So put us on pause, pick out
which answer you're gonna go with
and then restart the video when
you're ready to walk through it.
00:48
Okay, welcome back.
00:50
I hope you took the time to answer the
question the way you normally do on an exam
and I'm gonna give you some other
recommendations for you to consider.
00:57
I work with NCLEX students, tutoring them for
years and these are some of the things I've learned
that have been the most successful
for them and it's easy for you to do too.
01:07
Now look what I've done
there, there's no answer choices.
01:10
This is the hardest thing for people
to do but I'm gonna ask you to ignore.
01:16
You have to put your hand up on the screen,
put something over where you don't see it.
01:20
I'm gonna ask you to ignore the answer choices
because you're going to get a much better answer
if you'll just looked at the stem of the question first.
01:30
I'm gonna show you what I want
you to be looking for in the stem
but the stem is what we call the
words before the answer choices.
01:37
So we've already read through
this, you know this question.
01:40
what are the types of things
you should ask yourself?
First of all, what are the diagnoses that you see?
Ugh, this guy like most of our
patients has three of them, right?
So underline COPD, CHF and CKD stage 3
Now I know in an NCLEX test, you're taking
it online, you won't be able to underline that
but I want you to have this in your notes to
remind you that that's something you focus on.
02:08
So underline those three diagnosis in the test.
02:11
So we've got them there in a
different color, just so you can see that
Next thing, what diagnosis do you see?
Then you want to look
at what setting are you in.
02:21
We're in the emergency department.
02:23
So underline emergency department,
you'll see that we have that highlighted,
by a different colour but setting matters.
02:30
So I'm gonna do things differently
if I'm a school nurse at a picnic
versus a meeting in an emergency
department or in a hospital.
02:38
So make sure you're aware of what setting you're in.
02:42
Next up, what assessment data do we have?
We've got a lot but any time you see assessment data,
you always have to ask yourself is it normal or abnormal?
So if I see a number, is it high, low or normal?
If I see a description, is that normal or abnormal?
because we want to make a connection to the
diagnosis to let us know if that patient is in trouble.
03:06
So look at the assessment data we have, complains
of shortness of breath and severe swelling in his legs.
03:13
Yeah, we're real clear that
both of those are abnormal, right?
Looking back at diagnosis COPD, CHF, chronic
kidney disease - those kind of go along with that, right?
Now we're gonna look at the
information in the answer choices.
03:30
So we've got four options here, these are all assessments
so I want to look at each one first of all and see,
is that BUN high, low or normal?
So I want you to work through all four of those
and write a letter down, is it high, low or normal?
You can use arrows, you can
use letters but I want you to see,
can you make a call on each
one of those assessments?
Okay now, for any abnormal lab work,
does it tie back up to the patient's diagnosis?
Okay, so I know a normal BUN is 7-20 (mg/dL),
this is 18 (mg/dL) so I'm gonna cross that off
because that's a normal value.
04:16
Now a GFR that's 45 is little
bit low, right? that's not normal
and that does have a connection because
we know that he has chronic kidney disease.
04:26
What about that potassium?
Well it's slightly low, what does
that have to do with his diagnosis?
What about his blood pressure, is that high, low or normal?
Again, it's a little low but not usually significant, is it?
So I know I've gotten rid of the normal value, I
have three left that are a little bit on the abnormal side.
04:50
I'm gonna get rid of that potassium.
04:52
Not a strong connection there and they haven't
told me about other medications that they're on
so if I thought he was on dig (digoxin),
that might make it a little more complicated
but that was not given to me in the stem of
the question so I'm gonna get rid of potassium.
05:05
Now I'm stuck with GFR and blood pressure.
05:08
Make sure I'm asking myself
that last sentence of the question.
05:12
It's asking me which of the following
assessments would i anticipate?
so would I expect somebody with COPD,
CHF and stage 3 chronic kidney disease
to have lower blood pressure or lower GFR?
Right, I would expect them to have a lower GFR.
05:32
Patients with these diagnoses
generally have a higher blood pressure.
05:36
So the correct answer is B, a GFR of 45 milliliters
a minute, so what I want to encourage you to do is
discipline yourself to wait to look at the answer
choices until you've broken down the stem of the question.
05:51
First think, then look.