IV rate calculations for nurses - dosage calculations - Free Educational videos for Students in K-12

IV rate calculations for nurses - dosage calculations - By tecmath

Transcript


00:0-1	Good day . Welcome to the tech mouth channel .
00:01	What will be having a look at this video ?
00:03	Two second video looking at nursing calculations . Okay .
00:06	In this particular video , what we're going to be
00:08	having a look at is where we're working at flow
00:11	rates for intravenous therapy calculations . So intravenous fluids ,
00:15	these are basically ones that are delivered directly into a
00:18	vein via um say a drip set up or something
00:21	like this . So it's really , really critical say
00:26	that you can actually work out the volume of fluid
00:28	to be delivered in an hour or say that whether
00:30	this is actually an amount in say mills per hour
00:35	sort of thing of volume for our calculation , which
00:37	will be looking at or whether this becomes something where
00:40	you're actually looking at a drip of container where it
00:42	becomes a drops per minute type of calculation . Okay
00:45	. Because these droopy containers actually do have an adjustable
00:48	sort of rate . So these are things that can
00:50	be modified and it's critical you get these pretty good
00:53	. So first off , there's a really , really
00:55	important formula that you know with this and that is
00:58	where we can work out the rate of delivery for
01:02	an intravenous set up . And the rate is as
01:04	follows . This rate , uh delivery is it's basically
01:10	a amount for an amount of time . Okay ,
01:13	so a volume per , given an amount of time
01:20	. Okay , so given amount of volume and a
01:22	given amount of time , and this is typically used
01:25	as an amount of mills over In a given amount
01:31	of hours . Okay , so for instance , it
01:34	might be 6000 mil per hour or something like this
01:38	. Get that . So given this , given this
01:41	particular formula that we have here , let's just start
01:43	some really basic calculations . So say we have ,
01:47	we want to work at the road of delivery in
01:49	mils per hour where 500 miller is to be delivered
01:52	intravenously over four hours . So this little formula ,
01:55	we had this right okay . And it equaled the
02:02	volume in mill over time . So this equals as
02:10	full as the volume , this is in mill .
02:14	So this is already in mill is 500 bill in
02:20	time , which is in ours . Okay , so
02:23	this is already an hour's , so for four hours
02:26	, So 500 divided by four . Our answer ,
02:31	We should have a delivery rate of 125 mil per
02:36	hour . Okay , let's have a look . Another
02:41	question . Okay , Okay , so What is the
03:17	rate of delivery mil per hour where two letters is
03:20	to be delivered intravenously over 24 hours ? So a
03:24	formula where we have a right which is to be
03:30	delivered which is a volume . Again , this was
03:36	in mill and this has put over time which is
03:42	in hours , so this equals a volume in mill
03:47	. So we have a volume here which is two
03:50	leaders . Yeah this is not in mill at the
03:54	moment . To leaders were were one leader equals 1000
03:57	mil . Two leaders Equals 2000 milk . And it's
04:01	critical that you change these and get these in the
04:03	right unit and it's were delivered intravenously Over 24 hours
04:08	Over 24 hours . So what we end up with
04:13	is An equation with 2000 divided by 24 . Now
04:17	look you can counsel these out and spend time doing
04:19	that . That's for another math lesson . Uh alternatively
04:24	you may calculate this as you get 83.3 bill per
04:32	hour . Okay let's have a look at another one
04:39	. So what's the rate of delivery uh in mil
04:42	per hour where 350 mil is to be delivered intravenously
04:45	over 6.5 hours . So let's have a look at
04:50	our formula . First off we have our right which
04:53	equals the volume which is in mills over the time
05:05	which is it hours ? Okay and what we get
05:11	is this Okay ? The volume in mill we have
05:15	350 mil . Okay . Ah Time here You're going
05:24	to see is 6.5 . Now this be very very
05:29	careful when you start playing around the time . Time
05:31	is not a decimal thing but we have to make
05:33	it a decimal thing . So 6.5 definitely we're going
05:38	to write a 6.5 . Okay so this is six
05:41	0.5 hours answer . If you calculate this is we
05:48	should have A rate of 53.8 bill our being delivered
05:59	. Okay you hopefully got the hang of those .
06:01	Uh I'm pretty sure you can even make up your
06:03	own sort of questions with these , but let's have
06:06	a look at a different thing where we start to
06:09	actually look ah I'll just get rid of that up
06:12	there . We start to have a look a dripper
06:15	rates . Now , same times what happens is fluids
06:18	are being delivered , delivered using a dripper . Okay
06:21	, So basically what you need to start working out
06:24	, we're working out using a drop rate . Okay
06:27	. Um so what we do with this is we
06:32	do the following formula . We have a rate and
06:34	it's a similar sort of thing . We have this
06:36	rate which is in volume , which is in bill
06:41	over time , which is it hours . But now
06:48	what we do is we have to take into how
06:50	fast the drip rate occurs with and the way we
06:53	do this as we basically have our drops per mil
06:58	, which is being delivered by this particular particular system
07:01	, um and we put this over 60 Okay ,
07:04	60 So this is actually 60 minutes in an hour
07:08	. So I just want to just a couple of
07:13	things with this drops per mil uh , drop right
07:15	usually is around about 20 drops per mil for an
07:18	adult using a macro drip . Macro trip , usually
07:20	delivers about that much . Sometimes kids are slightly different
07:23	, they're using a micro drip , possibly this delivers
07:27	60 drops per mil . Okay , so just to
07:30	be something to be aware of it , the typical
07:32	Right of this is usually about 20 drops per mil
07:35	that we would use in a macro drip . Okay
07:39	, and what we typically do , also when we
07:40	get our drop rates , we actually were there ants
07:43	, we're going to round them up . Okay ,
07:44	We round them up to the nearest whole number .
07:47	Okay , so this is a great formula . It's
07:49	just an extension of this other formula we had ,
07:51	let's have a look at where we might apply it
07:53	. So a patient is to have a normal saline
07:57	Of one leader over six hours . And you're using
07:59	a macro drip , which is the 20 drops mill
08:02	. What's the required dose ? So first off let's
08:05	recollect this formula . So the uh the dose in
08:09	drops per minute . The old drops permit . It
08:12	is as follows . We have uh which is just
08:17	the right thing , drops per minute . We have
08:21	so first off we had the volume and we have
08:25	this over time . Okay , this the volume again
08:29	was in mill . The time was in hours .
08:32	And where times this by they are drop right over
08:37	60 . What does this equal ? Okay , let's
08:40	just substitute all our parts in . So the volume
08:44	we have is one leader . We have to change
08:46	this two mil . So this is 1000 mil .
08:52	We put this over time which is six hours ,
08:57	We're gonna multiply this by the drop rate . We're
08:59	using a macro drip , which is 20 drops per
09:01	mil . Okay , so we're gonna call this ,
09:04	I'm just gonna write that down to 20 And we
09:07	have uh this over 60 . Okay , so if
09:11	you calculate this , you're going to get this times
09:15	this This times this and you're gonna get this so
09:20	we're going to end up with okay , just doing
09:21	a bit of fraction work here , 1000 times 20
09:26	. It's 20,000 Over six times 60 , which is
09:31	360 . Mhm . And what we're going to end
09:35	up with is an answer which is 55.555 . You
09:39	get around this up so it becomes 56 drops .
09:43	Uh huh . Minute . Okay , let's have a
09:47	look at another one of these . So what we're
09:50	gonna do is we're gonna try and work at the
09:52	drops per minute if we are okay , the drops
09:55	per minute . If we are giving two liters of
09:59	fluid over eight hours . The macro drip Being used
10:02	is delivers 20 drops mill is expected . How much
10:06	is this in drops minutes . So let's get this
10:08	formula down so it drops a minute again is volume
10:13	. Okay , Which is in mill over time ,
10:17	which is end . I was times this are drip
10:22	right Over 60 . So what does this equal ?
10:28	Let's have a look . The volume two leaders to
10:31	leaders is 2000 mil . We have a time of
10:37	eight hours . Well , it's time just by The
10:42	drops the drop right ? Which is 20 And we're
10:46	gonna put that over 60 . Okay , so what
10:48	do we end up with ? Let's just do this
10:50	bit of fraction work here . So it's this times
10:52	this gives us our top answer to top ones .
10:54	So 2000 times 20 we're going to get the answer
10:58	of 40,000 . Okay . And eight times 66 .
11:08	- 48 . Over 480 . If you divide 418-40000
11:14	, divided by 480 , You get the answer of
11:17	250 drops permanent . Okay , Let's have a look
11:26	at one last one of these . So what we
11:29	have is we have 1600 miller fluid to be administered
11:33	to a child . Okay . These guys use these
11:36	micro drips . Yeah . Remember these have a 60
11:39	drops per minute ? Uh drop the mill rate over
11:42	eight hours . So what's the drop rate ? So
11:44	let's have a look at this . Let's get our
11:46	formula there . We have a formula which is uh
11:50	drops per minute rate which equals the volume . Remember
11:56	what this is in a volume . Having trouble writing
11:59	, simple words . Which is in a mill .
12:03	We have ah uh time which is in ours .
12:09	We at times in this by yeah drop right over
12:16	60 . So what does this equal now ? We
12:21	have a volume which is 1600 mil . We put
12:27	this over at eight hours at that time We're gonna
12:32	time just by a drop rate because this is a
12:34	child . Again , as you might recall , we
12:36	were saying that Children in fact often have a different
12:40	set up which is a micro group set up .
12:41	This has a 60 drops per mil . Okay ,
12:46	so this is 60 over 60 . Finally enough ,
12:51	these guys are going to cancel each other out ,
12:52	60 divided by 60 years one , So 1600 divided
12:57	by eight . And answer Is 200 drops per minute
13:03	. So , are you going with those ? Good
13:05	now , look , I'm not going to pretend that
13:06	I'm a great expert on nursing here , but I
13:08	can do the calculations . Okay . So I apologize
13:11	for any uh mispronunciations , any uh sort of silly
13:17	definitions like that that I might give . And by
13:19	all means , please correct me on these . Okay
13:22	, I'm not the nursing teacher , I'm not a
13:24	teacher who teaches this particular thing . But what I
13:26	do teach is the calculations . Okay ? So the
13:29	calculations should be good . All right . Anyway ,
13:32	the next thing we're gonna be having a look at
13:34	and are videos is we're going to start then having
13:37	a look at pediatric calculations . Okay ? So anyway
13:42	, I hope to see you that . See you
13:43	next time . Bye .

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