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February 24, 2002

Blood Tests and Insulin Injections

Question from Aiken, South Carolina, USA:

What are the effects of accidentally injecting insulin into muscle?


Accidentally injecting insulin into the muscle can cause a faster rate of absorption of the insulin. This could mean blood sugars drop faster than they might with subcutaneous injection. Absorption is even more rapid if those specific muscles are being exercised, such as injecting into the thigh muscles and then running. There is no damage inherent to the muscles in doing this, but it will vary the rate of insulin absorption and the predictability of that particular insulin dose.