# High insulin level? **URL:** \ **Category:** New T1/LADA\ **Created:** [December 15, 2017, 4:10am UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868 "2017-12-15T04:10:43Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Pianoplayer7008](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/pianoplayer7008/32/1507_2.png) [@Pianoplayer7008](https://forum.fudiabetes.org/u/Pianoplayer7008)\ **Post date:** [December 15, 2017, 4:10am UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868/1 "2017-12-15T04:10:43Z")
I had labs drawn, I thought just to check my thyroid function after a med change, but my doctor ordered full workup (CBC, CMP, a1c, insulin/cpep, etc). I saw the results online - everything normal, except my insulin levels were 154.2 (normal range 2.6-24.9)! My c peptide was 1.5 (fasting), so that’s most likely from synthetic insulin, from what I’m reading (insulin resistance would cause a correspondingly high c peptide). Is this normal for diabetics - normal range doesn’t apply? I don’t have a follow up scheduled with my doctor currently (again, labs were originally ordered just to check thyroid and make med change if necessary) - should I schedule one, or message her? I’m sure she’s seen these results, so I feel like they would’ve called me in if it was a problem. 😕 ETA: I’m not on basal insulin, so this result was ~12 hours post last Novolog injection. ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [December 15, 2017, 5:07am UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868/2 "2017-12-15T05:07:24Z")
Insulin level lab isn’t relevant if you’re taking exogenous insulin… and insulin level labs are next to worthless even without that. What was the reference range on the c-peptide? although I do find it interesting that the last insulin bolus was so far in the past, I don’t know how to interpret that. That’s something I’d be asking an endocrinologist (who hopefully is the one managing your thyroid labs also) ---
**Author:** ![Pianoplayer7008](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/pianoplayer7008/32/1507_2.png) [@Pianoplayer7008](https://forum.fudiabetes.org/u/Pianoplayer7008)\ **Post date:** [December 15, 2017, 1:33pm UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868/3 "2017-12-15T13:33:19Z")
> [@Sam](#): > > Insulin level lab isn’t irrelevant if you’re taking exogenous insulin… and insulin level labs are next to worthless even without that. What was the reference range on the c-peptide? That’s what I thought, though it was also odd to me that it would be that high when I hadn’t injected anything for so long. C peptide range was 1.1-4.4. I’ve been hovering here for a while (last one was 1.4), though my non-d brother had his checked recently, and it was 1.8 or something, so not sure it’s really relevant, either. ---
**Author:** ![Thomas](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/thomas/32/1719_2.png) [@Thomas](https://forum.fudiabetes.org/u/Thomas)\ **Post date:** [December 15, 2017, 1:38pm UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868/4 "2017-12-15T13:38:55Z")
> [@Sam](#): > > That’s something I’d be asking an endocrinologist 100% agree. Discuss all the labwork with a Doctor. I think it is a good idea to request expected lab orders about 3 weeks in advance of an upcoming appointment such that the results as a comprehensive entirety can be discussed with your Doctor. ---
**Author:** ![Pianoplayer7008](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/pianoplayer7008/32/1507_2.png) [@Pianoplayer7008](https://forum.fudiabetes.org/u/Pianoplayer7008)\ **Post date:** [December 15, 2017, 1:53pm UTC](https://forum.fudiabetes.org/t/high-insulin-level/2868/5 "2017-12-15T13:53:27Z")
> [@Thomas](#): > > I think it is a good idea to request expected lab orders about 3 weeks in advance of an upcoming appointment such that the results as a comprehensive entirety can be discussed with your Doctor. That’s what we usually do, but this last appointment we made a thyroid med change, and she told me we’d recheck thyroid labs in 6 weeks and she’d adjust my dose if needed - I wasn’t expecting this other stuff, or I would’ve asked for an appointment. She’s always pretty booked up, so I know I won’t be able to get in for a month or two, so I was just curious in the meantime.