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<?xml-stylesheet type="text/xsl" href="https://www.vetnurse.co.uk/utility/feedstylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Soda lime</title><link>https://www.vetnurse.co.uk/f/clinical-discussions/7215/soda-lime</link><description> Have read you cant rely on colour change and you need to avoid it drying out. 
 I have always only chnaged when most changed colour, should we be doing it more regular?? Also where do you dispose of yours? </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79230?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 20:17:13 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:54afc1fd-a63b-447f-af4c-1fdc02a1ed2c</guid><dc:creator>Kerry Spain</dc:creator><description>&lt;p&gt;fair doo&amp;#39;s a cannister it it then &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Winking_smiley.gif" alt="Wink" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79226?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 20:04:16 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:29d5fcae-adda-4dec-877b-1c86c18dae03</guid><dc:creator>Nick Shackleton </dc:creator><description>&lt;p&gt;no worries Kerry!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;just a to and fro is also known as water&amp;#39;s canister!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;I&amp;#39;ve always referred to it as soda lime canister&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.asahq.org/Newsletters/2001/09_01/erickson.htm"&gt;http://www.asahq.org/Newsletters/2001/09_01/erickson.htm&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79224?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 19:59:35 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:df6162af-8fcb-4802-be10-981e6f21274e</guid><dc:creator>Kerry Spain</dc:creator><description>&lt;p&gt;and may I also add that the ADE is one of the most expensive and sophisticated circuits available (to my knowledge) &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Very_happy_smiley.png" alt="Big Smile" /&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79223?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 19:57:39 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:2bd3f12c-478b-4726-9974-c52888dd8c88</guid><dc:creator>Kerry Spain</dc:creator><description>&lt;p&gt;[quote user=&amp;quot;Nick &amp;#39;Batfink&amp;#39; Shackleton DipAVN(Surgical)VN MBVNA&amp;quot;]&lt;/p&gt;
&lt;p&gt;[quote user=&amp;quot;Kerry &amp;#39;kezzathecat&amp;#39; Haigh RVN&amp;quot;]&lt;/p&gt;
&lt;p&gt;We change ours every 2 weeks as we have a Humphrey ADE and the Waters canister is quite small on it so I guess it exhausts quicker.&amp;nbsp; When it has had it it ends up in a clinny waste bag &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Thumbs_up.png" alt="Thumbs up" /&gt;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;Aggggggggggggggggggghhhhhhhhhhhhhh waters canister!!! this has to be one of the worst circuit to use!!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;There is only one place that these belong and that is the veterinary museum!!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;these circuits easily fall off the table or disconnect from patient or extubate the patient.&lt;/p&gt;
&lt;p&gt;With the canister very close to the patient the patient may end up inhaling the fine powder from the&amp;nbsp;canister.&lt;/p&gt;
&lt;p&gt;Also as the soda lime becomes exhausted the dead space of the circuit increases.&lt;/p&gt;
&lt;p&gt;If the soda lime is not packed tightly it can cause the expired gases to avoid going through the soda lime causing the patient to re-breath CO2.&lt;/p&gt;
&lt;p&gt;As most of the books will tell you the disadvantages out way the advantages.&lt;/p&gt;
&lt;p&gt;Sorry rant over. I know some practices have to make do with available equipment.&lt;/p&gt;
&lt;p&gt;Sorry again!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;OK firstly we use a HUMPHREY ADE (as clearly described in my previous post)&lt;/p&gt;
&lt;p&gt;This circuit is NOTHING like a to and fro, so my mistake for using the the term &amp;#39;Waters Canister&amp;#39;&lt;/p&gt;
&lt;p&gt;I have always used this expression for referring to the &amp;#39;thing&amp;#39; which holds the soda lime.&amp;nbsp; No doubt some one on here will inform me of the correct term for the contraption which holds the soda lime.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79222?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 19:53:01 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:b3dd9c2d-89c7-4628-930b-aaf9d042920a</guid><dc:creator>Laura Ringsell</dc:creator><description>&lt;p&gt;[quote user=&amp;quot;Mrs Dot Dot RVN MBVNA&amp;quot;]
&lt;p&gt;We use the pink to white soda lime, and change it at the beginning of every month, regardless of how pink or white it is...depending on how busy we have been depends on its colour! Quite often less that a third has changed to white, but I just prefer to know that it is changed regularly.&lt;/p&gt;
&lt;p&gt;We also are as full on with H&amp;amp;S as possible eg gloves, masks, aprons and well ventilated room and then seal up tightly&amp;nbsp;the bag with the old stuff in and dispose of it in clinical waste....... it is nasty stuff!&lt;/p&gt;
&lt;div style="CLEAR:both;"&gt;&lt;/div&gt;
[/quote]&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Ditto for us&amp;nbsp;- this will make your hair curl though. Someone i used to work with was told when she was a studnet (by the Senior vet) that when it changes to white you wash it to re-fresh it, dry it out and then bobs your uncle ready to use again - I am not joking!!!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79201?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 17:34:23 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:7d4d65cc-97cf-4e03-b8a0-f8beae82b83e</guid><dc:creator>Nick Shackleton </dc:creator><description>&lt;p&gt;[quote user=&amp;quot;Kerry &amp;#39;kezzathecat&amp;#39; Haigh RVN&amp;quot;]&lt;/p&gt;
&lt;p&gt;We change ours every 2 weeks as we have a Humphries ADE and the Waters canister is quite small on it so I guess it exhausts quicker.&amp;nbsp; When it has had it it ends up in a clinny waste bag &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Thumbs_up.png" alt="Thumbs up" /&gt;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;Aggggggggggggggggggghhhhhhhhhhhhhh waters canister!!! this has to be one of the worst circuit to use!!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;There is only one place that these belong and that is the veterinary museum!!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;these circuits easily fall off the table or disconnect from patient or extubate the patient.&lt;/p&gt;
&lt;p&gt;With the canister very close to the patient the patient may end up inhaling the fine powder from the&amp;nbsp;canister.&lt;/p&gt;
&lt;p&gt;Also as the soda lime becomes exhausted the dead space of the circuit increases.&lt;/p&gt;
&lt;p&gt;If the soda lime is not packed tightly it can cause the expired gases to avoid going through the soda lime causing the patient to re-breath CO2.&lt;/p&gt;
&lt;p&gt;As most of the books will tell you the disadvantages out way the advantages.&lt;/p&gt;
&lt;p&gt;Sorry rant over. I know some practices have to make do with available equipment.&lt;/p&gt;
&lt;p&gt;Sorry again!!!&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79182?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 13:43:34 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:719c41aa-d67c-4328-a659-2752a99f13c2</guid><dc:creator>Kerry Spain</dc:creator><description>&lt;p&gt;We change ours every 2 weeks as we have a Humphrey ADE and the Waters canister is quite small on it so I guess it exhausts quicker.&amp;nbsp; When it has had it it ends up in a clinny waste bag &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Thumbs_up.png" alt="Thumbs up" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/79179?ContentTypeID=1</link><pubDate>Mon, 19 Apr 2010 13:34:09 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:958f3b15-fe26-4304-9bf2-7e7d1a8e291a</guid><dc:creator>clairebear .</dc:creator><description>&lt;p&gt;had a discussion regarding sodalime with an anaesthetist, i think from north west surgeons a while back.&amp;nbsp; they advised to change monthly unless a very busy proactice would benefit from changing sooner, i have worked in practices where they are changed daily!! i think monthly is definately the way to go!!!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/73513?ContentTypeID=1</link><pubDate>Mon, 08 Mar 2010 20:09:36 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:04d7f522-7458-4bb0-8aa9-03751541a6d9</guid><dc:creator>FINNIGAN</dc:creator><description>&lt;p&gt;ours is the pink to white and is changed once used for a full hour, we keep a chart on wall for time/length used and dispose of in clinical waste&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/73500?ContentTypeID=1</link><pubDate>Mon, 08 Mar 2010 19:29:09 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:6d1f9ce0-ff45-4c40-ab36-2a6534fd8ad0</guid><dc:creator>JaneRVN</dc:creator><description>&lt;p&gt;&lt;span style="font-size:x-small;"&gt;&lt;b&gt;Sorry - a bit long but in a rather wooly way answers the questions!&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="font-size:x-small;"&gt;&lt;b&gt;How SODALIME Works: &lt;/b&gt;&lt;br /&gt;&lt;br /&gt;The color of fresh unused SODALIME ranges from white to slightly off-white. Since SODALIME contains ethyl violet, the product&amp;#39;s color changes progressively to violet as CO&lt;sub&gt;2&lt;/sub&gt; absorption capacity is exhausted. In normal use, the ethyl violet color change is initiated when the carbonic acid (H&lt;sub&gt;2&lt;/sub&gt;CO&lt;sub&gt;3&lt;/sub&gt;) level increases with a corresponding decrease in pH. This color change, from white or off-white to violet, indicates that SODALIME is reaching or has reached its CO&lt;sub&gt;2&lt;/sub&gt; absorptive capacity, and there is need for immediate replenishment. &lt;br /&gt;&lt;br /&gt;&lt;strong&gt;If not replenished and allowed to stand unused, caustics from the core of the granule slowly migrate to the surface and neutralize the carbonic acid. In this case, the pH level increases and the color change is reversed and the used material returns to a white or off-white color.&lt;/strong&gt; In this situation, SODALIME will appear to be fresh, even though it is at least partially exhausted. SODALIME in this apparently fresh condition should be replaced and never used again, as it will change color almost immediately. &lt;br /&gt;&lt;br /&gt;Because &lt;strong&gt;the color change is fully reversible&lt;/strong&gt; and the quality of the color change is affected by a variety of factors, it should be used only as a visual indicator. It is therefore essential that color change be used in conjunction with other exhaustion measurement techniques to determine when replacement is necessary. &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;Ref: - &lt;a href="http://www.airgas.com/content/details.aspx?id=7000000000226"&gt;http://www.airgas.com/content/details.aspx?id=7000000000226&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;In terms of how long it lasts - &lt;/p&gt;
&lt;p&gt;The ADE canister holds about 500gms of soda lime and will absorb a finite amount of CO2. At the low fresh gas flows recommended a large amount will be absorbed especially from patients over 25kg. Consequently there is no time length the soda lime will last so observation of the colour change is required. The soda lime that first reacts with CO2 will exhaust first so colour changes will be seen early at the top of the expiratory side of the canister (below the blue one-way valve). This will gradually progress down this side and then begin to track up the other side especially around the middle division. Once this happens and half the soda lime has changed colour it is time to change the soda lime. At this point even if there is no colour change the soda lime is most used up as the colour change is a late change. Remember soda lime is cheap and the quicker it is exhausted the more oxygen and vapour has been saved!&lt;/p&gt;
&lt;p&gt;It is also recommended that, even if the soda lime is not exhausted, it is changed at least once a month. There are some very poor soda limes on the market that hardly change colour and the exhausted state is not recognized. Exhausted soda lime gets wet and can completely clog the flow through it and cause obstruction - experience with Intersurgical UK &amp;ldquo;Spherosorb&amp;rdquo; and Drager soda lime is good.&lt;/p&gt;
&lt;p&gt;Ref:- &lt;a href="http://www.anaequip.com/faq.htm#soda1"&gt;http://www.anaequip.com/faq.htm#soda1&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/71150?ContentTypeID=1</link><pubDate>Sun, 21 Feb 2010 21:35:50 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:b3630de9-3285-4310-a33e-cf23750e37e1</guid><dc:creator>Kim Buckley</dc:creator><description>&lt;p&gt;We use the white to purple stuff and change it every month unless it&amp;#39;s changed a lot before then. I think our clinical waste people take it separately and we just put the old stuff into an old tub. &lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/71145?ContentTypeID=1</link><pubDate>Sun, 21 Feb 2010 21:20:40 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:fa59570a-7c4d-47e3-9173-7d24eccebd37</guid><dc:creator>Vicky RVN</dc:creator><description>&lt;p&gt;We use white to purple, change it when half of it has changed colour.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Soda lime</title><link>https://www.vetnurse.co.uk/thread/70974?ContentTypeID=1</link><pubDate>Sat, 20 Feb 2010 16:16:47 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:6e5a293e-f2f8-4878-90dd-34092178b8d7</guid><dc:creator>Mrs Dot Dot</dc:creator><description>&lt;p&gt;We use the pink to white soda lime, and change it at the beginning of every month, regardless of how pink or white it is...depending on how busy we have been depends on its colour! Quite often less that a third has changed to white, but I just prefer to know that it is changed regularly.&lt;/p&gt;
&lt;p&gt;We also are as full on with H&amp;amp;S as possible eg gloves, masks, aprons and well ventilated room and then seal up tightly&amp;nbsp;the bag with the old stuff in and dispose of it in clinical waste....... it is nasty stuff!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>