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Medtronic 670G
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<blockquote data-quote="kitedoc" data-source="post: 1907702" data-attributes="member: 468714"><p>To clarify [USER=491635]@Muneeb[/USER],<em> the needle/cannula stay in place for about 3 days at a time</em> whilst the pump is doing its thing, so injections ('skin breaches) are much reduced compared to multiple daily injection mode. Of course the sites are rotated to prevent lipodystrophy and to reduce the risk of poor absorption.</p><p>The times when I have needed to inject separately or have more insulin by using a new needle/cannula to give a larger bolus is where I suspect that the cannula under the skin has become bent and is not delivering the correct dose of insulin, leading to high BSLs and sometimes ketones forming. With multiple daily injections of insulin <em>the reservoir of insulin is under the skin</em> where the long acting insulin is being gradually absorbed into the blood stream. With insulin pumps <em>the reservoir is in the pump with only a modicum of insulin under the skin </em>so that diminution or interruption of supply of short acting insulin leaves the person with little or no insulin fairly quickly (? 4 to 6 hours) compared to someone who had had a shot of long acting insulin within the last 12 to 24 hours.</p></blockquote><p></p>
[QUOTE="kitedoc, post: 1907702, member: 468714"] To clarify [USER=491635]@Muneeb[/USER],[I] the needle/cannula stay in place for about 3 days at a time[/I] whilst the pump is doing its thing, so injections ('skin breaches) are much reduced compared to multiple daily injection mode. Of course the sites are rotated to prevent lipodystrophy and to reduce the risk of poor absorption. The times when I have needed to inject separately or have more insulin by using a new needle/cannula to give a larger bolus is where I suspect that the cannula under the skin has become bent and is not delivering the correct dose of insulin, leading to high BSLs and sometimes ketones forming. With multiple daily injections of insulin [I]the reservoir of insulin is under the skin[/I] where the long acting insulin is being gradually absorbed into the blood stream. With insulin pumps [I]the reservoir is in the pump with only a modicum of insulin under the skin [/I]so that diminution or interruption of supply of short acting insulin leaves the person with little or no insulin fairly quickly (? 4 to 6 hours) compared to someone who had had a shot of long acting insulin within the last 12 to 24 hours. [/QUOTE]
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