Insulin Overdose

DunePlodder

Well-Known Member
Messages
861
Type of diabetes
Type 1
Treatment type
Insulin
Warning: Long story.
Came home from work last Thursday and was preparing my evening meal. I remembered that my basal insulin cartridge was empty and put a new one in. It was a big meal, pasta based with a lot of carbohydrate - I injected 16 units to cover it. Before eating I also did my basal injection, 33 units.

As I started to eat my meal an image of the insulin cartridge flashed into my mind. It was brown rather than purple. I grabbed my Lantus pen & it was true I had injected Humalog instead of Lantus. Idiot. A total of 49 units, wow. All I could think was "Eat". I had 3 Dextrose tablets & ate my meal (I can't recommend the combination) I then had a yoghurt.

I tried to think. My BG was 4.9 when I started eating (why couldn't it have been 9.9?) My CGM showed it was about 5. I ate some more glucose tablets washed them down with water. I waited 20 minutes but it went down slightly. I ate a chocolate bar & tried to think.
I didn't have a Glucagon kit - my last one had expired & I had reasoned that as I live alone there was no one to give it me if I was unconscious & if I wasn't, I'd be able to deal with it. Idiot.

Time to phone a friend. I asked him to call into the pharmacy and try to get Glucagon, failing that some Lucozade or similar. Meanwhile I drank some sugar water & wrote down a summary of what had happened.
He came quickly but Glucagon is only available on prescription as I thought. I drank some lucozade. BG 4.9. I was thinking (perhaps not very clearly) I'd keep going & if I did lose consciousness, at least there was someone there to call an ambulance but he talked me into dialling 111.

I tried to explain the situation but had to answer a whole series of questions, at the end of which he said "please wait while I put you through to someone who knows more about this" - or something like that. After a minute or so of music another guy came on the line and asked the same questions, meanwhile my BG had dropped a couple of points.. Eventually he advised me to go to A&E, offering to arrange an ambulance if necessary.

My friend took me down It's about three miles & as we arrived I finally saw my BG had increased. A&E was quiet & after checking in we sat down & waited. I could see my BG was now going up rapidly. After about 15 to 20 minutes (my brain was a really fuzzy by now) I was called in to see a nurse. Very friendly & she asked me more questions & filled out forms. It was very clear that she had little idea of basal and bolus insulins - I had to correct her several times. She did a finger prick test; 11.5. Took my BP & heart rate. I went back to the waiting room & we sat & chatted for 40 minutes or so. I was then called in to see a Doctor & went through the story again. By this time I was quite confident that everything was under control & wanted to get home, it was 9:00 pm. At first he wanted me to stay longer but I showed him my CGM, I don't think he'd ever seen one, & on the basis that I'd be monitoring carefully he allowed me to go home.

In fact there was a slight sting in the tail. After a shower my BG had dropped rapidly down to around 7 and was still falling. I ate a couple of glucose tablets, a packet of crisps & a slice of toast & stayed up for a while keeping an eye on my CGM. Eventually I went to bed, setting my alarm a couple of times to check - I was so tired I wasn't sure the Dexcom alarm would wake me. The next morning my BG was 7.1.

It was rather embarrassing to mess up like that, but everyone was very nice about it. It was the first time I'd ever been to a hospital with a diabetes related problem (in nearly 20 years). As it happened I had dealt with it successfully, not even having a hypo. My worry was that being down in the 4s to start with, there was no lee way if it had dived suddenly. At least if I'd passed out in A&E there was someone to help.

Thoughts:
The people at 111 advised A&E & offered to arrange an ambulance, but all the questions and handing me over to a second person took a lot of time. In that time I could have dropped into a hypo & worse. You'd think the words "I've taken an insulin overdose" would trigger some urgency. The same applied at A&E though the receptionist could see me & perhaps judged that I looked & sounded in control. Or had no idea of the implications of an overdose. As I've found in the past, medical staff's knowledge of diabetes, especially type 1, seems to be rather limited.

I've never eaten so much in such a short time. I'm surprised I wasn't sick. I hate Lucozade. I'm an Idiot.
 
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dollydaydream2014

Well-Known Member
Messages
69
Type of diabetes
Type 1
I've never mixed up my cartridges but I have injected with the wrong pen (same result) for my evening dose and had to sit eating banana sandwiches , biscuits, milk, dextrosols . Similar experience ringing NHS direct no real clue or sense of urgency!


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robert72

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2,878
Type of diabetes
Type 1
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I did that once but had not realised. Luckily I was in Boots when the hypo hit... came out of nowhere and I was almost fitting, but managed to tell the pharmacy staff what was happening and they kept an eye on me whilst I scoffed 2 packets of fruit pastilles and a few shots of neat ribena which they brought me. After about 20 minutes I felt up to walking home (10 minutes) and I was at about 3 on the meter when I got home :eek:

I think in your case I would have called 999 just to be safe
 

noblehead

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A close call DunePlodder, you did everything right asking a friend to come over and getting checked out at the hospital, here's hoping you don't make the same mistake again.
 

DunePlodder

Well-Known Member
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861
Type of diabetes
Type 1
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Insulin
In the early days I did once inject with the wrong pen, but it was slow acting instead of faster acting, Humulin I & S in those days, but it wasn't such a problem. I now use totally different coloured pens kept in different places.
After this experience I think it might be a good idea if there were different basal & bolus pen designs with basal cartridges unable to fit into a bolus pen & vice versa?

Believe me I don't want to make the same mistake again!
 

robert72

Well-Known Member
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2,878
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I now get my Lantus in Solostar pre-filled pens. Also switched from Humalog to Novorapid (Echo pen) so there's no mistaking them now.
 

ElyDave

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Messages
2,087
Type of diabetes
Type 1
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glad no serious outcome. I've done the same myself, grabbed the pen for my morning basal, not concentrating too much as it was breakfast time and bolus also due.

As I pulled the needle out, I saw orange instead of green. Luckily in my case only 3.5 units gone in wrongly, but that's still a substantial amount of carbs. Oatcakes, apples, toast etc.
 

abs

Well-Known Member
Messages
261
Type of diabetes
Type 1
Treatment type
Insulin
I've been to A&E in my area with insulin overdose and seen straight away taken straight to majors no more than a 3 minute wait from walking through the doors to being seen by a nurse or doctor. Some areas seem better with diabetes but yep the 111 is rubbish they have limited understanding I know when I have said ketones to them they don't have a clue and ask me if that's a high level of them!
 

Donna1

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170
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I did that once but had not realised. Luckily I was in Boots when the hypo hit... came out of nowhere and I was almost fitting, but managed to tell the pharmacy staff what was happening and they kept an eye on me whilst I scoffed 2 packets of fruit pastilles and a few shots of neat ribena which they brought me. After about 20 minutes I felt up to walking home (10 minutes) and I was at about 3 on the meter when I got home :eek:

I think in your case I would have called 999 just to be safe

Did they charge u for the pastilles n ribena! Lol jus kidding!
I have at nite a few times stuck my needle on the novorapid pen instead of lantus n set to 6 units, luckily have caught myself in time, thank god!
Yous are right, i have jus finished my course 6 months ago as a mental health nurse and there was very little training throughout the course on diabetes! My diagnosis has served me well on the subject! Yous were lucky yous got help in time!
 

kkkk

Well-Known Member
Messages
185
Type of diabetes
Type 1
Treatment type
Insulin
I think I have done it twice - wrong insulin pen…though long acting instead of short acting, so I just had extra basal stuff (once when I was a kid) once when I was older….I normally realise just as I have finished depressing the plunger on the pen! I do have different pen colours and all that, even having different shape pens I reckon you could still inject the wrong one! I guess the only other thing that might have helped was to work out your carb/insulin ratio for that time of day - so work out how many carbs and how much insulin and then use that to work out how much extra carb you need to cover the overdose! I have to say the first time when I was a kid we managed to speak to a DSN - the 2nd time it was out of hours and I basically figured there was no one there to help really other than my family (nhs direct isn't that helpful and always say casualty!), but as it was basal I just didn't inject anymore of it at bedtime and rode it out on the basis as a bit higher in the morning was better than hypo in the night. The CGM must have been invaluable tho with all that.
 

DunePlodder

Well-Known Member
Messages
861
Type of diabetes
Type 1
Treatment type
Insulin
I did work out how many grammes of carbs - about 250! The problem was that after the meal though I was eating glucose tablets/sugar water/chocolate biscuits then Lucozade my bg wouldn't go up but went down & as I was already in the 4s...

Of course it did eventually rise rapidly but at the early stage I didn't know that.
Yes the Dexcom really was invaluable.

Robert72 yes perhaps I should return to the prefilled pens. I was using them, but they seemed so wasteful, environment wise.
 

kkkk

Well-Known Member
Messages
185
Type of diabetes
Type 1
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Insulin
Wow that is a large meal! Glad you are alright.
 

iHs

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4,595
Ive done silly things myself in the past. Might be better to use levemir as the basal instead of lantus as the cartridges are a different shape. Also, a good emergency standby is to have 2 tins of ambrosia rice pudding with the ring pull lids. Has loads of carbs to eat up the insulin

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nclemale

Member
Messages
20
Good job pal . there's an article in the mirror today about diabetic specialists on the decline and how this will affect the NHS on the whole . figures are dropping dramaticly

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pennyjwills

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It happened to me once. I injected my Novorapid at 40 units. I can blame Robbie Williams to some extent though. Angels got stuck in my head and I can't stand Robbie Williams. I went to the bathroom cabinet to get some more needles for my Novorapid pen which I had in my hand and because I normally do my Levermir in there at the same time as my heart and kidney pills every morning I went on autopilot while trying to eradicate Robbie from my brain and although I used the right pen for my breakfast insulin I injected the wrong amount.

It didn't dawn on me until I went to the kitchen to eat my nice low starch spinach egg white omelette with sausages. My face was a look of pure horror! I ate my hubbys last chocolate bar and made a bottle of sugar water and phoned NHS Helpline who pretty much said I needed to get myself to the hospital as an ambulance wouldn't make it in time.

My brother got me to the hospital with extreme driving skills while I gulped down sugar water and after 2 hours of waiting in the corridor and my husband force feeding a now very grumpy (low sugar 4) me sandwiches by the time I saw the nurse they'd returned to normal. Stinking headache all day after and spent my Sunday in bed in the dark. Now I always double check before I inject and I hope Robbie Williams music never enters my head again! lol! :)