Nursing maths - medication math made easy! - Free Educational videos for Students in K-12

Nursing maths - medication math made easy! - By tecmath

Transcript


00:0-1	Good and welcome to the Tech Math channel . What
00:01	I'm gonna be having a look at this video is
00:03	going to be looking at nursing calculations are basically this
00:07	video is in response to teaching a bunch of nurses
00:10	. So I'm putting a bunch of videos up in
00:13	order to help them with their drug calculations , but
00:15	also to help anyone who's doing a drug calculation sort
00:18	of things . Uh , so this particular video we're
00:20	going to be having a look at is we're going
00:22	to be having a look at say working at the
00:24	amounts of a drug that should be given based upon
00:27	, say volume or a tablet sort of form .
00:30	Um , and this is based upon how much is
00:34	required and how much is actually on hand as well
00:37	as a particular strength of a drug . We're also
00:39	gonna be looking at some weight based sort of medications
00:41	in this just as well as some of the unit
00:43	conversions are grams , two mg , micrograms , sort
00:47	of things that you may be expected to rus .
00:50	So uh there will be a few things covered in
00:53	this particular video . In later videos , we're gonna
00:55	be looking at say intravenous medications are things like pediatric
00:59	calculations , things like this for drugs like that .
01:02	Okay , so let's get on with this particular one
01:05	. Now , this is the first video in this
01:07	series and this is probably the most important uh formula
01:11	that you'll get as far as drug calculations going .
01:14	It's this one here where the amount of a drug
01:17	, okay . Which I'm just gonna put down as
01:19	amount and it's based upon a few things to start
01:24	off with . Um It's most simplest form . Its
01:27	first off . It's based upon the stock required .
01:30	Now the stock , what's called the stock required is
01:32	the amount of the drug which has actually been ordered
01:35	for the patient . Okay . Ah We also base
01:40	it upon another thing , nice messy line there which
01:45	is called the stock supply . This is the actual
01:49	strength or their of the actual drug that you have
01:53	on hand . Okay , so this is what the
01:55	patient actually requires . This is the actual what you
01:57	actually have and will reconcile these two . We also
02:02	They're going to be using this thing called volume .
02:04	Some drugs are based upon our you know , maybe
02:08	they're said to be five mg in two mil sort
02:12	of thing . Okay , so it's a strength that's
02:15	based upon a volume . So we're gonna deal with
02:17	that occasionally to this particular parts not always used and
02:21	you'll see where this is used and where this isn't
02:23	used in this particular video . The other thing we
02:26	are going to be dealing with is occasionally will have
02:28	to work out the stock required based upon a patient's
02:31	weight . We'll deal with that is we come along
02:33	. Uh but we're also going to be dealing with
02:34	metric conversions and these conversions , the major ones uh
02:39	and substitute leaders for the actual measurement I'm about to
02:43	use like but I'm going to use saying where one
02:47	g equals 1000 milligrams . Similarly one leader equals 1000
02:53	mL and we're one uh milligram is equal to 1000
03:03	micrograms . Okay . And these are the units with
03:07	these sort of prefixes , which he used a whole
03:09	lot . Okay , This micrograms by the way ,
03:11	can also be written like this . Ok , It's
03:14	this little u torrent symbol . Um but yeah ,
03:18	this also means micro . Uh Now , just a
03:21	couple of things with this the way I remember when
03:23	I do these is this idea of this thing called
03:25	mr B s I think of that being whatever you
03:29	might actually remember that . Okay , Mr Bs .
03:32	And what it means is this if you're going from
03:35	a bigger say grams here to a smaller unit .
03:38	Okay . What you do is you are multiplying this
03:42	number by 1000 . for example , if we're going
03:46	from say .6 g , we want to change that
03:50	to milligrams . Okay , Which is a small thing
03:54	. We can either multiply by 1000 so 10000.6 times
03:57	1000 which is 600 . Alternatively , we can move
04:00	this decimal place here . Right ? And you move
04:03	it right three times because it's 123 zeros and 1000
04:07	whichever way you prefer to do that , this would
04:09	go 123 and become 600 . Okay ? Alternatively if
04:16	we're going from a smaller to a bigger number we
04:20	divide or we go left . Okay . But I
04:23	remember this using mr B s . So let's um
04:26	let's get into some of these calculations that we're gonna
04:28	be doing . So first off we have a patient
04:30	which has ordered 500 are this one here ? Which
04:34	ones this one this one's milligrams of metaphor man hydrochloride
04:38	. The ward stock is 1000 mg per tablet .
04:41	So how much should be given the first off ?
04:43	What I recommend is you try to give these ago
04:46	okay You might not for this first one but try
04:48	to give them a go make the mistakes get them
04:51	right get them right or wrong here that we can
04:53	then you can go through your answer . Okay so
04:55	first off the way I do this is his first
04:58	off get this formula the amount and that equals .
05:03	I'm not going to write the whole lot . I'm
05:04	just gonna write down stuck required in an abbreviated form
05:08	over the stock supplied times the volume . Okay so
05:15	What do we get for this ? Well we get
05:16	the following , the stock required , the amount the
05:18	patient actually needs is this thing here uh this is
05:22	500 mg of the patient's been ordered to have ,
05:25	so we have 500 milligrams . Okay , And we're
05:31	gonna put that over the stock supplied , the stock
05:35	supplied , That's 1000 mg . That's the stock awards
05:38	stock here , which is 1000 mg per tablet .
05:43	Okay , the volume that we're not going to worry
05:45	about the volume and the reason we're not going to
05:47	do this is because this is not a volume particular
05:49	equation , this is just a tablet equation . And
05:52	where it's a tablet equation , you can either assume
05:54	this just to be one or not worry about it
05:56	. So this is a rather simple particular equation here
06:00	, we're just going to end up with equals 500
06:02	over 1000 . So the amount of tablets required equals
06:06	half a tablet . Hopefully that's the answer you got
06:11	. Okay , let's go into the next one .
06:13	Mhm . A patient is ordered to have 600 .
06:17	What's this particular 1 ? Micrograms of medication stock on
06:22	hand is 100 and 50 micrograms into mill . So
06:26	let's calculate the volume to be given the same formula
06:28	. Give it a go . Okay , so the
06:32	amount is equal to the stock required over the stock
06:42	supplied times the volume . Okay , and you see
06:45	there is a volume here . This is this particular
06:47	part here . Okay , so let's work this out
06:54	. So we have the stock required . A patient
06:56	is ordered to have this much the stock requires the
06:59	patient's meant to have . So it's 600 micrograms and
07:06	this is going to be divided by The stock supply
07:09	. This amount here , 100 stock on hand is
07:12	100 and 50 Mark . Programs CGs and the volume
07:20	. Okay , this is how much the stock on
07:22	hand is this amount in this amount ? This is
07:25	the volume . Okay , so the volume here is
07:28	to bill . So what do we get ? We
07:32	get 600 divided by 150 . We get the answer
07:36	of four And four times 2 mil . four times
07:42	to mill . We have our answer how much volume
07:45	we get a middle of medication to be given .
07:49	Hopefully you went pretty good with that . Okay ,
07:52	let's have a ah look at another question , an
07:55	injection of a drug ? one mg is ordered .
07:58	Okay , Stock on hand is 500 micrograms in two
08:02	mil . Okay , so we've got milligrams and micrograms
08:06	, we are going to have to deal with those
08:07	to make these the same types of units , what
08:10	volume should be drawn up . So first off I'm
08:13	going to deal with this fact that we have here
08:15	, we have milligrams , one mg which is ordered
08:18	and we have 500 micrograms supplied . So first off
08:23	we have to get these the same . So I'm
08:25	going to change milligrams here . two micrograms . Okay
08:29	, so one milligram , ecowas Harmony micrograms . Okay
08:38	, M C G s . Now this is using
08:42	Mr B s . This is a bigger thing here
08:46	. This is a smaller . So we're going to
08:49	multiply mr we're going to either multiply or move the
08:53	decimal place . Right , I'm going to multiply by
08:55	1000 . So we have 1000 micrograms . Okay ,
09:01	so let's get our formula where it is the amount
09:08	and at the course stock required over the the stock
09:14	supplied times the volume . Okay , what does this
09:20	Eagle ? Okay , the stock required . So this
09:24	is that the injection of one mg , which we
09:28	worked out to be 1000 micrograms . So 1000 M
09:33	. C . G . S . And This stock
09:40	supplied is 500 micrograms in two mills . So 500
09:46	micrograms M . C . G . S . And
09:49	the two millions of volumes at times to mill .
09:53	Okay so what do we get ? We get the
09:55	answer of A 1000 divided by 500 . It's two
10:01	so two times two mil answer . Hopefully this is
10:06	the answer you got . It's four bill . How
10:09	did you go there ? Let's have a look at
10:12	the ah another question . Okay A patient with acute
10:17	alcohol withdrawal is to be given diazePAM five mg and
10:22	polls . I'm gonna probably say that wrong containing five
10:25	containing 10 mg but 2,000,002 mL . What volumes of
10:30	the patient receive ? Okay I'll read that again ,
10:33	a patient with acute alcohol withdrawals is to be given
10:35	days of pam five mg and polls contained 10 mg
10:40	for every two mills , what volume should the patient
10:44	receives ? So this year um again we these milligrams
10:49	are in the same units . We don't have to
10:50	stuff around with those . So let's just straight into
10:53	our formula are amount equals the stock required over the
11:03	stock supplied times the volume . This equals stock required
11:11	is to be given five mg . So that's five
11:15	milligrams Over the stock supply which is 10 mg and
11:24	this is times are volume which is to to milk
11:29	. So what do we have ? 5/10 ? This
11:31	is the same as a half and a half times
11:34	two mil answer is going to be what bill ?
11:42	Okay , hey going with these . Good . Okay
11:46	ah We got this particular one here ordered as 1000
11:50	mg in stock . We have one g in three
11:53	milk . What volume should be injected . Now ,
11:56	first off , what you may notice is this we
11:58	have different units here , we have milligrams here and
12:02	grams here . So we're going to have to reconcile
12:04	this . Uh The way I'm going to do this
12:06	is I'm going to change our grams particular unit here
12:10	. Often find it's easier to go from the bigger
12:12	medication and change it into a bigger unit and change
12:15	into the smaller unit . Okay , so let's do
12:19	this . one g is equal to how many milligrams
12:24	? Ah well use mr Bs mr B.S . We're
12:31	going from bigger to smaller . So I'm gonna multiply
12:34	by 1000 . We're going to end up with 1000
12:38	mg . So let's slot this into the equation which
12:42	is the amount equals the stock required over the stock
12:49	supplied times the volume this equals the stock required equals
12:57	1000 . Actually audit is 100 mg . So 100
13:03	billy graham's . The stock on hand is one g
13:08	in three mills , is that 1000 ? So 1000
13:12	milligrams times the volume , which is three . Okay
13:18	, so what did you get for this ? Ah
13:20	100 over 1000 equals 0.1 times three . Bill We
13:30	get the answer . The way in which we need
13:32	is 0.3 mil . Okay , but that's our answer
13:38	. Okay , you know this one we're going to
13:43	be dealing with a weight based medication here . So
13:47	let's have a look at this . A client who
13:49	weighs 60 kg is to be given a drug ,
13:52	two mg per kilogram stock strength is 40 mg for
13:57	every two mil . What volume where the drug should
13:59	they be given ? Well , has a lot of
14:00	numbers . There isn't , there don't get too thrown
14:03	by them . Now , the biggest difference , but
14:05	this one , this is a weight based medication .
14:07	We stock strengthen that . That's all pretty standard .
14:10	We know how we're going to deal with that .
14:11	We're going to deal with that a bit later on
14:12	. But first , what we have to do is
14:14	we have to work out the stock required and to
14:18	do this . What you will see that first sentence
14:22	, a client weighs 60 kg , is to be
14:25	given a drug at two mg per kilogram . So
14:30	every kilo , they're given two mg . So why
14:34	are we going to work this out as we're gonna
14:36	get the 60 and we're gonna times by two because
14:41	for every every kilogram they're getting two mg of 60
14:45	kg . So we're times these together , we get
14:48	120 mg of the drug being required . So let's
14:55	put this into our formula where the amount once again
14:59	, standard formula vehicles , the stock required over the
15:05	stock supplied times the volume . What do we get
15:11	? We get stock required , which is 120 milligrams
15:19	. We're gonna put that over the stock supply ,
15:21	the stock supplied . Does this one here ? There's
15:24	40 mg ? Yeah , uh the volume , This
15:32	is two milks at times too . What do we
15:34	get better ? Put the bill there , ah We
15:39	have 120 divided by 40 , which is three ,
15:43	three times 2 mil and it equals six mil .
15:49	This is our answer . Okay , All right ,
15:55	now there is one last question here . Another weight
15:58	based question . Now , let's have a look at
16:02	this one . The stock of a drug is stock
16:04	strength of a drug is 80 mg for two mil
16:07	. Okay , that's the stock strength . Usually ,
16:09	I've been putting them a bit after a client who
16:11	weighs 40 kg , is to be given a drug
16:13	at two mg per kilogram , what volume of the
16:15	drug should they were given ? So first off ,
16:17	let's work out how much drugs , how much what
16:21	their stock required is , because we have our stock
16:23	supplied , we have our volume , we need to
16:26	use these to work out our stock required . Our
16:29	stock required equals The client weighs 40 kg , and
16:36	has given two mg per kilogram . So we're gonna
16:38	get 40 and we're gonna times it by two .
16:41	Okay , because for every kilo they get two mg
16:44	. So they're going to get 80 mg . Now
16:48	let's put this into our equation where the amount equals
16:54	the stock required over the stock supplied times the volume
17:01	. Okay , let's put these in . So the
17:02	stock required is 80 . We just worked that out
17:06	80 mg . We put this over the stock supplied
17:12	stock , stock strength . So we have ah 80
17:16	mg In a volume of two . Real . What
17:25	we get 80/80 is one times two . So we
17:29	get an answer with two bill . Okay , because
17:33	this over this is one , so one times two
17:36	equals two mil . So hopefully you're good on that
17:39	. There is a bunch of these men . Are
17:41	these medication calculations on the internet ? Uh Just type
17:44	of medication calculations . You'll find lots and lots of
17:47	worksheets with these um for my guys , I do
17:51	have lots and lots of these I can supply for
17:53	you as well . Okay . Uh in future videos
17:56	, what we're going to start having a look at
17:57	is we're gonna start having a look at things like
18:00	rates , injectables and things like this . And then
18:02	we're gonna have a look at pediatric calculations . I
18:04	put a few links for those up right now .
18:07	Anyway , hope you found that helpful , let's say
18:10	next time .

Summarizer

DESCRIPTION:

OVERVIEW:

Nursing maths - medication math made easy! is a free educational video by tecmath.

This page not only allows students and teachers view Nursing maths - medication math made easy! videos but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.