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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>Circle circuit question</title><link>https://www.vetnurse.co.uk/f/clinical-discussions/11026/circle-circuit-question</link><description> Hi guys 
 With the circle circuit, as its closed it&amp;#39;s obviously hard to adjust the levels of volatile agent quickly during anaesthesia. 
 What is the quickest way to reduce depth of anaesthesia with a circle?? For example if the patient went a bit</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103820?ContentTypeID=1</link><pubDate>Sat, 11 Dec 2010 10:07:28 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:6bc6751e-b734-4008-a726-ad355f35442a</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;no worries &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Happy_smiley.png" alt="Smile" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103812?ContentTypeID=1</link><pubDate>Sat, 11 Dec 2010 02:24:00 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:ae41a573-6d47-494c-835f-b8f9ab1b1d42</guid><dc:creator>Phrin Vernon RVN</dc:creator><description>&lt;p&gt;Aghhh! I was a sarcastic sod- sorry!&lt;/p&gt;
&lt;p&gt;This site is fab for discussion tho!&lt;/p&gt;
&lt;p&gt;xxx&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103585?ContentTypeID=1</link><pubDate>Wed, 08 Dec 2010 00:23:46 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:86f8537f-f535-4934-ad39-96299600031b</guid><dc:creator>Phrin Vernon RVN</dc:creator><description>&lt;p&gt;Whoops - I was just a bit insensitive then too- sorry1&lt;/p&gt;
&lt;p&gt;[quote user=&amp;quot;Phrin SVN&amp;quot;]&lt;/p&gt;
&lt;p&gt;[quote user=&amp;quot;dinkyd&amp;quot;]&lt;/p&gt;
&lt;p&gt;Oh is it.Im awfully sorry for my mistake if it is- not exactly difficult to find once on the website and im sure with just a little looking they would find it ....dont think i&amp;nbsp;appreciate your tone very much i was only trying to help.&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;Whoa! No need!&lt;/p&gt;
&lt;p&gt;SmegSlayer was just trying to direct people to the resorces part of the website IMHO&lt;/p&gt;
&lt;p&gt;x&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;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103584?ContentTypeID=1</link><pubDate>Wed, 08 Dec 2010 00:15:55 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:f1071206-f9cf-4611-833e-3c9e6a3e33b2</guid><dc:creator>Phrin Vernon RVN</dc:creator><description>&lt;p&gt;[quote user=&amp;quot;dinkyd&amp;quot;]&lt;/p&gt;
&lt;p&gt;Oh is it.Im awfully sorry for my mistake if it is- not exactly difficult to find once on the website and im sure with just a little looking they would find it ....dont think i&amp;nbsp;appreciate your tone very much i was only trying to help.&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;Whoa! No need!&lt;/p&gt;
&lt;p&gt;SmegSlayer was just trying to direct people to the resorces part of the website IMHO&lt;/p&gt;
&lt;p&gt;x&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103577?ContentTypeID=1</link><pubDate>Tue, 07 Dec 2010 22:46:15 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:f47c9ba3-906e-439a-8b00-2f9263d2cfb6</guid><dc:creator>SmegSlayer</dc:creator><description>&lt;p&gt;[quote user=&amp;quot;dinkyd&amp;quot;]&lt;/p&gt;
&lt;p&gt;Oh is it.Im awfully sorry for my mistake if it is- not exactly difficult to find once on the website and im sure with just a little looking they&amp;nbsp; would find it ....dont think i&amp;nbsp;appreciate your tone very much i was only trying to help.&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;I meant no offense by my comment. I went to read it and couldn&amp;#39;t find it so when I found it thought I would mention it. Quite frankly the website design makes it quite difficult to be accurate with those menus that drop down when you hover over them.&lt;/p&gt;
&lt;p&gt;I&amp;#39;m sorry if you were hurt or offended.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103570?ContentTypeID=1</link><pubDate>Tue, 07 Dec 2010 21:54:13 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:40ce59ab-f758-4e63-bfc9-cc4b7930a540</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;Oh is it.Im awfully sorry for my mistake if it is- not exactly difficult to find once on the website and im sure with just a little looking they would find it ....dont think i&amp;nbsp;appreciate your tone very much i was only trying to help.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/103460?ContentTypeID=1</link><pubDate>Mon, 06 Dec 2010 10:55:52 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:251674bc-7149-4ea3-a5ed-b8fc60b8761b</guid><dc:creator>SmegSlayer</dc:creator><description>&lt;p&gt;[quote user=&amp;quot;dinkyd&amp;quot;]&lt;/p&gt;
&lt;p&gt;Boogle there is a pretty good website that has animations showing how the circuits work etc you need to go to the resources section and its under clinical anaesthesia.&lt;img src="http://www.vetnurse.co.uk/emoticons/new/Happy_smiley.png" alt="Smile" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.frca.co.uk"&gt;www.frca.co.uk&lt;/a&gt;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;
&lt;p&gt;[/quote]&lt;/p&gt;
&lt;p&gt;Think you will find that it is under resourses- physics and equipment- breathing circuits&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: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/100331?ContentTypeID=1</link><pubDate>Sat, 30 Oct 2010 15:35:04 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:3713fbdf-9636-4f28-9b01-554f49903bf0</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;Your&amp;nbsp;very welcome &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Very_happy_smiley.png" alt="Big Smile" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/100081?ContentTypeID=1</link><pubDate>Wed, 27 Oct 2010 19:23:09 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:181756d1-cdb0-446c-b3d0-74cd91ca9466</guid><dc:creator>Teh Fluffeh</dc:creator><description>&lt;p&gt;Thanks so much for posting the animations link.&amp;nbsp; I was about to ask if anyone had decent pictures of what each of the circuits look like as we don&amp;#39;t use many in my practice, but it looks like there&amp;#39;s no need now.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99801?ContentTypeID=1</link><pubDate>Sat, 23 Oct 2010 15:05:02 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:a08aa7c4-ac17-4829-8508-1e1b5bee3441</guid><dc:creator>Boogle</dc:creator><description>&lt;p&gt;Oh awesome, I shall have a look at that. Will certainly help get my head round them.&lt;/p&gt;
&lt;p&gt;You guys are so helpful &lt;img src="http://www.vetnurse.co.uk/emoticons/new/Very_happy_smiley.png" alt="Big Smile" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99800?ContentTypeID=1</link><pubDate>Sat, 23 Oct 2010 14:53:06 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:f64b9dfe-e55e-4760-8882-19cdd9b4b12c</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;Boogle there is a pretty good website that has animations showing how the circuits work etc you need to go to the resources section and its under clinical anaesthesia.&lt;img src="http://www.vetnurse.co.uk/emoticons/new/Happy_smiley.png" alt="Smile" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://www.frca.co.uk"&gt;www.frca.co.uk&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99798?ContentTypeID=1</link><pubDate>Sat, 23 Oct 2010 14:40:11 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:3cbbb6d8-da37-4c92-bcab-9cdfc46bf43d</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;Just to add...closed,semi closed and open do not have anything to do with the apl valve- these terms refer to the flow rates used within the circle system.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99770?ContentTypeID=1</link><pubDate>Fri, 22 Oct 2010 23:01:22 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:e8fd2d78-c44b-4f5a-9213-fb9a7ab821f7</guid><dc:creator>Phrin Vernon RVN</dc:creator><description>&lt;p&gt;You&amp;#39;re welcome - I was always taught to squeeze the bag too, and occasionally habit still gets the better of me!&lt;/p&gt;
&lt;p&gt;It wasn&amp;#39;t until going to college that I learnt the correct (and logical when you think about it) way to do it!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99766?ContentTypeID=1</link><pubDate>Fri, 22 Oct 2010 21:42:29 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:b47b284a-7797-435d-966e-6659253ce119</guid><dc:creator>Boogle</dc:creator><description>&lt;p&gt;Thankyou!
That makes sense. I was taught to squeeze the bag, but didn&amp;#39;t think that was quite right. Makes much more sense to alter the flow rate accordingly.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Thankyou :)&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99720?ContentTypeID=1</link><pubDate>Thu, 21 Oct 2010 23:55:29 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:13b1187a-bcc1-4930-8a2d-a08c81c38968</guid><dc:creator>Phrin Vernon RVN</dc:creator><description>&lt;p&gt;Hi Boogle&lt;/p&gt;
&lt;p&gt;The circle should ALWAYS be run as a semi closed system, so the APL valve should be at least half open.&lt;/p&gt;
&lt;p&gt;The reason it can take so long to adjust depth, is because of the low flow rates. If you want to initiate a change quickly, just up the O2 level a few litres - at least 1.5 x minute volume if not more. This will mean that the gas is&amp;nbsp; flushed through the system quicker, and the new iso/sevo levels will stabilise within the circuit quicker.&lt;/p&gt;
&lt;p&gt;There should be no need to empty the bag, as this will upset the dynamics of the circuit.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99713?ContentTypeID=1</link><pubDate>Thu, 21 Oct 2010 22:48:34 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:868eaed3-0cbf-43ea-aadb-516be7ee98c4</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;that wont change the anaesthetic depth any quicker though.....to speed up delivery of the gas you need to increase your flow rate in order for it to be carried round the system quicker.I only ever touch the bag if i am disconnecting the circuit-then i will empty the bag of its contents or if i am having to deliver a breath to the patient.Shouldnt be a need to empty the reservior bag when changing depth as the circuit then needs to reload itself.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99712?ContentTypeID=1</link><pubDate>Thu, 21 Oct 2010 22:34:40 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:c2ee2710-84dd-4e95-a84d-416784ecda35</guid><dc:creator>Polly P</dc:creator><description>&lt;p&gt;I was taught when upping or downing the iso (or other agent) when you have adjusted it to squeeze the bag to expel the prior dosage, so that the animal gets the revised dosage faster.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Re: Circle circuit question</title><link>https://www.vetnurse.co.uk/thread/99708?ContentTypeID=1</link><pubDate>Thu, 21 Oct 2010 22:20:14 GMT</pubDate><guid isPermaLink="false">1a0763ec-3885-442c-853e-6cef656dfec5:ca673863-cfe0-4b94-8d2c-42a161515c07</guid><dc:creator>dinkyd</dc:creator><description>&lt;p&gt;The circle should never be run as a closed system - so unsure what you are referring to here?&lt;/p&gt;
&lt;p&gt;To increase/decrease anaesthetic depth can be achieved quite quickly - i wouldnt recommend you turn off the vaporiser to adjust anaesthetic depth as its quite likely you will end up having the dog jumping off the table!&lt;/p&gt;
&lt;p&gt;To adjust anaesthetic depth simply reduce the setting on the vaporiser and you can increase your flow rate to&amp;nbsp;get a quicker depth change.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>