Nursing medication math calculation - wv percentages made easy! - Free Educational videos for Students in K-12

Nursing medication math calculation - wv percentages made easy! - By tecmath

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00:0-1	Good day . Welcome to Take Math Channel . This
00:01	video is a continuation of a series I've been making
00:03	for our nurses looking at drug calculations and what this
00:06	one is looking at specifically is percentage is used in
00:10	drug calculations . Now , these percentages usually used to
00:13	show the concentration of a particular active ingredient in a
00:17	drug . So what do I mean by that ?
00:20	That's where you have say something like this . 10%
00:24	. And you'll see quite often Wv written after it
00:27	. Yeah . With this I'm going to show you
00:29	first off just what this means and then how we
00:31	can use this to work out a few things .
00:33	Just various concentration based questions uh That you might come
00:38	across or things like that . Now , first off
00:41	, what does this mean ? When you see this
00:43	this 10% WV is fairly simple . As long as
00:46	you break it down 10% . 1st off , you're
00:49	probably well aware 10% means . 10 out of 100%
00:53	is out of 100 . The W . V .
00:56	Part tells us you know what the 10 and 100
01:00	mean ? Okay , what I mean by this ,
01:02	You know , 10 What's out of 100 watts .
01:04	The w stands for weight . The weight specifically here
01:10	Is in g . This is 10 g out of
01:14	100 . This is where the V . Part comes
01:17	in the V states of volume . The volume is
01:21	given in mill . Okay , this is 10 g
01:25	per 100 bill . And that's pretty much what these
01:29	mean . So say for instance , if you had
01:32	it was , I'll give you a different one here
01:34	. So say it was something that you had 3%
01:38	W . V . It would become three g per
01:43	100 mil . And if this was ah 5% WV
01:48	of an active ingredient , it would become you guess
01:52	that five g per 100 mil . This part stays
01:55	the same . It's only this little bit up here
01:56	, that changes the amount of grams . Okay ,
01:59	and that's a concentration that we have here quite often
02:02	constant . And you will see your concentrations uh this
02:05	sort of format where we have grams per mil or
02:07	milligrams for miller milligrams per liter , but it's always
02:11	in that , you know where we're going , wait
02:13	per volume . Okay , so I'm going to show
02:16	you there how we can play around with this first
02:19	off to work out a few things , but just
02:22	what I'm going to show you , it's just another
02:24	way of writing this or another way of working out
02:27	the concentration , but not in grams per per mil
02:31	, which is a little bit cumbersome . You'll find
02:33	I'm going to show you how to work this out
02:34	in terms of milligrams per bill . Okay , and
02:40	this is a lot easier way of working with concentration
02:43	because you can easily then convert things across and work
02:46	things out as you'll see . So first off ,
02:49	what is So a 10%, , 10% wv What is
02:57	that going to meet ? What is that going to
02:58	be this ? 10% of an active ingredient ? What's
03:00	that going to be in milligrams per mil ? So
03:03	, first I figured looking into , Okay , this
03:05	means Tyne grabs per 100 bill , which is equal
03:11	to now , milligrams is 1000 mg in a gram
03:16	. So by times 10 by 1000 have 10 1000
03:21	mg per 100 mil . Okay , so the units
03:26	are right , milligrams are right and mills are right
03:28	and I can now council things out . So there's
03:32	two zeros up here and there's two zeros down there
03:34	and I am left with 100 mg per bill .
03:41	But I'm going to show you just a little trick
03:42	here , a little shortcut . If you want to
03:45	easily go from this percentage here straight into milligrams bill
03:49	. If you want , you can easily do this
03:51	grams familiar . You want to put it straight away
03:53	into milligrams ? Mill just times by 10 . Okay
03:57	, so 10 times 10 is equal to a 100
04:02	to say slightly differently . If it was 3% ,
04:07	I want to know what it is in milligrams per
04:10	mil . Well just times it by 10 And it
04:15	is 30 mg per bill . Okay , or another
04:19	way you can think of as three g per 100
04:22	mil . Okay , so it's two ways you can
04:24	do this . So just give you one more of
04:27	those to say . I wanted to know what uh
04:31	Okay , harder one there . 0.5 . So the
04:34	active ingredient was 0.5% WV wait for volume . What
04:39	is the milligrams per mil with times it by 10.5
04:43	times 10 this would be five mg per mil as
04:48	the active ingredient . Okay , so You're going to
04:51	say , Okay , what of it ? It's sort
04:53	of showing you halfway , but this now we can
04:55	use to work out a whole bunch of things .
04:57	It's the same for instance , we had dextrose and
04:59	it was 1% Dextrose , WV and 20 bill Of
05:06	this particular solution is given . I don't want to
05:08	know how much of the active ingredient is given .
05:10	So say this was dextrose , one 20 mil of
05:14	the solutions , given how much actual dextrose has given
05:18	. How do we work this out ? The way
05:20	we do ? This is as follows . Now ,
05:21	the first thing I do is I change this into
05:24	milligrams per mil . Okay , it's a nice universal
05:27	sort of thing . So 1% Wv is times 10
05:32	, this is 10 mg per bill And 20 bills
05:38	given . So There's 10 mg every mill 20 mil
05:43	is given . So at times just by 20 mil
05:47	it tells us 200 milligrams of active ingredient is given
05:55	. So that's why I had you changing those at
05:57	the start because it's a nice and easy way of
05:59	doing this . Okay , what about we go through
06:03	another one of these types of questions to say we
06:06	had 0.5% in concentration and 10 Miller's given , how
06:14	much the active ingredient is given . So how do
06:18	we work this out ? Well , we're gonna change
06:20	this into milligrams per mil . 0.5 times 10 is
06:23	five mg per mil , and then times 10 mil
06:27	because for each meal we're getting five mg , so
06:30	10 times 10 mil , We are given 50 milligrams
06:36	of active ingredient . So the other type of question
06:40	you might get with this is say for instance ,
06:43	you had 12.5 g of active ingredient , which is
06:49	glucose and this is in half a liter . And
06:54	I want to know what the what is the percent
06:57	v I want to know what that is . I
07:00	want to change it back to the initial part .
07:02	So how do we go about doing this ? Well
07:04	, that's fairly simple . You probably guess the first
07:07	thing we're going to do is we are going to
07:09	put this as a milligrams per mil . So 12.5
07:15	and we're going to put this in milligrams per meal
07:18	first and then instead of times it by 10 to
07:21	get it back to the w and they're defined by
07:23	10 . Yeah . So what's this in milligrams from
07:26	bill ? How many milligrams ? In 12.5 g ?
07:31	This is 12,000 500 mg . How many mills is
07:40	this ? This is 500 mil . So I made
07:45	sure the unit is good and now I can just
07:48	divide through so I'm going to get rid of zero
07:52	. Is here this zero this zero this zero this
07:54	0 125 divided by five is 25 milligrams per built
08:04	. And what is as the active ingredient percentage here
08:08	? Well , instead of times it by 10 .
08:10	Which we were using to get To this stage from
08:13	the you know this way I'm gonna be going backwards
08:17	. So I'm gonna divide by 10 . This is
08:18	2.5% . Let's put the top of your very there
08:22	just to be happy . All right . What about
08:24	another question here ? Say we have 1.6 g of
08:30	dextrose . It's in 200 mil . And I want
08:33	to know you can guess it . I want to
08:35	know what the percent W . V . Is .
08:40	Yeah , I want to know what that is as
08:41	a concentration percentage . So first off , I'm gonna
08:44	put this in billy Graham's per bill . So what
08:47	is this in milligrams Per bill . This is ingram's
08:54	. I'm gonna change in milligrams and at times it
08:56	by 1000 . This is 1600 mg . This is
09:00	already in bill . This is 200 pill 1600 ,
09:05	divided by 200 . This equals right milligrams per mil
09:14	and then dividing it by tend to get it back
09:16	to this percentage . This is 0.8 percent W .
09:22	V . All right . Anyway , hopefully you found
09:25	that video usable and well , always happy to make
09:30	more videos . See you next time . Bye .

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Nursing medication math calculation - wv percentages made easy! is a free educational video by tecmath.

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