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FWIW, on our MM pump, his basal rate is too low to trigger an occlusion/delivery failure alarm. In other words, there isn't enough resistence to delivery to trigger the alarm because the insulin delivery rate is low. Whenever we get a delivery failure, it's always been with a bolus. However, that doesn't mean the the basal is getting in. It probably isn't, but it's not enough pressure to trigger the alarm.
Ugh, total disaster. No second occlusion, but at bed time sugar was 595. Had to do a site change, and was so scattered, used the old tubing. Fixed that, then put in the site without priming, so had to take it out, prime and reinsert site. Stressful and left with a very unhappy boy. It's an hour after bed and BG is just under 500, so new site seems to be working, despite all the problems to get it in. Any ideas on what causes occlusions? Thinking next time I'll just change the site right away instead of risking the high BG....
I know this thread is resolved but I'm going to throw in my .02 anyway. I had issues with occlusion and Vivs ping. She pumps with apidra and steel sites so kinking isn't our issue. When I called about the occlusion they told me it's the insulin.