Please click here to read a National Alert Network (NAN) release regarding the incorrect use of insulin pens at home. As explained in the alert, ISMP has received reports of several insulin dependent patients who failed to remove the inner cover from a standard insulin pen needle prior to administering the insulin. In the most recent case, the patient developed diabetic ketoacidosis and later died. Please share this alert with your staff and colleagues. If you are having trouble opening the link, copy and paste the following address into your web browser.