Label the vial immediately with three critical data points: (1) reconstitution date, (2) concentration in mg/mL, and (3) expiration date (28 days from reconstitution when stored at 28C)
when cooled, vials must be allowed to reach ambient temperature before use to minimize syringe air bubble formation and injection discomfort
However, the committee vote reported after the FDA meeting was only a recommendation
UK guidance (WHO 2011, NICE NG28) recommends fasting plasma glucose or a 75 g OGTT when HbA1c is considered unreliable
Prior B12 values show whether the elevation is persistent or already on its way down, and any CBC, liver tests, or renal function already on file may point to a cause before anything new is ordered
Unlike a trip to the drugstore, where you find yourself staring at an endless aisle of vitamins and supplements, vitamin injections come with medical supervision