možda ti ovo pomogne,da napomenem ovo je za INZULIN ali je hemiskica ista
Dosing with a Pen
Using a pen is quite easy. Once the cartridge is loaded, you simply screw on a pen needle, prime if needed to clear out any air in the cartridge, dial in the desired dose, inject the needle, and press the button to deliver the insulin. If you use a pen with an insulin suspension, such as NPH or a premixed insulin, you will need to gently shake the pen to be sure the insulin is mixed prior to use. Pens are easy enough for kids to use, and are excellent for use at school or while out and about.
Pen needles should be removed after each use to prevent air from entering the cartridge and to prevent insulin from leaking out. There are many different pen needles available, in varying lengths and diameters.
BD pen needles come in three lengths: 5mm and 8mm (31G), and 12.7mm (29G)
Novo Nordisk pen needles, called NovoFine®, come in 6mm (31G) or 8mm (30G)
Owen Mumford pen needles, called Unifine Pentips, come in four sizes: 6mm (30G), 8mm (30G), 8mm (29G), and 12mm (29G)
Disetronic pen needles, called Penfine, come in four sizes: 6mm (31G), 8mm (31G), 10mm (29G), and 12mm (29G)
The smallest pen needles are very short and very thin and help minimize the discomfort of injection. Unlike syringes, pens need to be held in place for several seconds after the insulin is delivered to ensure that no insulin leaks out. Syringe users who switch to pens should pay close attention to the injection site and test their blood glucose often as they become accustomed to pen injections.
Dosing increments vary by pen, with some pens starting at 1/2 or 1 unit and allowing 1/2 unit dosing, while others dose in one or two unit increments. While pens offer injection convenience, they don't allow mixing of multiple insulins, so if you inject short and long acting insulin together (e.g., Humalog and NPH), you'll double your number of injections.
Pens offer repeatability in dosing accuracy compared with syringes. Also, because dosing with a pen involves dialing a mechanical device and not looking at the side of a syringe, insulin users with reduced visual acuity can be assured of accurate dosing with a pen.
evo i taj sajt sa slikama ima,možda se bolje vidi nešto
http://www.diabetesmonitor.com/pens.htm
