Centrifugal speeds

Re: Centrifugal speeds

Georgina Small — Mon, 18 Jun 2012 10:57:41 GMT

Hello,

I am currently updating the recomended speeds on our machine as we are using ones for the wrong machine! I do have the booklet and if you want to know the wiring diagram or what chemicals different parts of the centrifuge are resistant to then it is amazing, but for the spin speeds there is no mention!!

I know this is an old post but wanted to put this on here for others searching.

Re: Centrifugal speeds

Rachel Jayne — Mon, 27 Feb 2012 22:51:08 GMT

I distinctly remember a college-buddy coming out of her lab practical shouting;

"Omg, they asked me centrifuge speeds & I said 2000 for 10 instead of 10,000 for 2!"

So that has stuck in my head ever since!

Re: Centrifugal speeds

Sal the 1st — Sun, 26 Feb 2012 18:41:07 GMT

bump

Re: Centrifugal speeds

Fiona Leathers — Fri, 13 Aug 2010 19:45:49 GMT

I use this website for my students when they need stats on centrifuges cos most of the use Statspin

http://www.statspinvet.com/products_us/products.php

Re: Centrifugal speeds

Calli D — Tue, 10 Aug 2010 15:59:20 GMT

Maybe its ok on the lower speed. I guess it depends if your machine gives you that much choice. Not used it yet for urine so will have to wait and see. Will prob seperate the samples and test it.

Re: Centrifugal speeds

Sal the 1st — Tue, 10 Aug 2010 14:18:51 GMT

5 mins seems an awful long time for urine if you are looking for crystals - but I am prob wrong

Re: Centrifugal speeds

Calli D — Tue, 10 Aug 2010 11:53:57 GMT

I found some recommendations in the up to date Jones book - they give a guideline of:

Blood - 10,000rpm for 5min, Urine - 2000rpm for 5 mins and Faeces - 1000 to 1500 rpm for 3 mins

but best check with manufacture guideline too

Re: Centrifugal speeds

BengalcatRVN — Tue, 27 Jul 2010 20:01:52 GMT

mine has differnt time and speed's on dials, but then someone has helpfully added blood/urine/haematicrtic on the machine already! I love my machine

Not helpful am I? lol!

Re: Centrifugal speeds

Sal the 1st — Tue, 27 Jul 2010 19:53:07 GMT

looked up what I used to use on a swing out centrifuge

2,500rpm for 3 mins for serum/plasma seperation 1,000 rpm for 1 min urine sediment

Re: Centrifugal speeds

Phrin Vernon RVN — Mon, 26 Jul 2010 22:06:16 GMT

I've worked in a few practices, and most had a statspin so it was easy peasy!

In my current practice we have a woodly something or other, and I'm 99% sure we do 5mins at 12000rpm (highest setting) for plasma, serum and PCV's and 1 min at 1000 rpm for urine

We have the recommendations hanging above the centrifuge though, so its still pretty easy! Would have to check tomorrow to be 100% sure!

Re: Centrifugal speeds

Sandra Taylor RVN, MBVNA — Mon, 26 Jul 2010 15:50:41 GMT

No problem

Re: Centrifugal speeds

Calli D — Mon, 26 Jul 2010 15:44:46 GMT

don't be silly saying that, it'll probably materialise next week!! ah well, it was just a thought. Will have to get my research head on and figure it out then am going to laminate it and stick it to the bleeding machine. Thanks though.

Re: Centrifugal speeds

Sandra Taylor RVN, MBVNA — Mon, 26 Jul 2010 15:32:53 GMT

[quote user="Calli D"]

Nope . It is quite a beast of a centrifuge - Centurion Scientific EB Series. It gives you the choice of Pulse, then anything from 2 to 30minutes, from 1000 to 12,000 rpm!! But in hindsight, after reading yours has it recorded on the machine, maybe I should contact the maufacturer for their recommendations - or dig out my old nursing manual, or maybe the old idiots guide to lab techniques

[/quote]

I take it you dont have the original booklet that came with it then?

Re: Centrifugal speeds

Calli D — Mon, 26 Jul 2010 15:29:47 GMT

Re: Centrifugal speeds

Sandra Taylor RVN, MBVNA — Mon, 26 Jul 2010 15:09:23 GMT

Does it not have it on the centrifuge?

Ours has different settings depending on what you are spinning down for.

lipoclear 90 secs, urine 30 secs etc, it should have it on it!