Final answer:
You should keep the insulin pen in place for 6 to 10 seconds after injection to ensure proper dose delivery and decrease blood glucose levels.
Step-by-step explanation:
After injecting insulin, it is recommended to keep the insulin pen in place for about 6 to 10 seconds. This is to ensure that the full dose of insulin is delivered and that none leaks out from the injection site. Insulin acts to decrease blood glucose levels by facilitating the uptake of glucose into cells for storage and energy usage. It is important for those with type 1 diabetes to monitor their blood glucose levels and administer insulin shots accordingly, as their bodies do not produce insulin naturally.