Construction of the injection pen:

The injection pen is a pen injector that consists of three parts: the cap, the reservoir chamber, and the propeller. The propeller includes a piston rod, piston, dose indication window and injection push button. The injection needle system includes the injection needle, the inner cap of the injection needle, and the outer cap of the injection needle.

Growth hormone injection pen procedure:

1. Installation of the refill

Before installation, check whether the refill is intact, there is no crack, if broken should be replaced. Twist open the refill holder and install the refill.

2. Installation of needles

Remove the needle, open the package, sterilize the front of the refill with 75% alcohol, screw the needle clockwise and remove the protective cap. To ensure safety, use a new needle each time.

3. Exhaust

Turn 1 scale for the first exhaust, the first medication exhaust operation so that the pen pusher and the quill piston tightly connected, each subsequent injection without exhaust, remember that there is no need to disassemble and separate the pen and the quill again until the entire medication is injected.

4. Dosage adjustment

Turn the dose adjustment knob and adjust the desired dose before each injection as prescribed by your doctor. Since each vial contains 30 IU, each injection of 1 IU = 10 graduations, 2 IU = 20 graduations, 3 IU = 30 graduations, e.g., for a medically prescribed dosage of 3 IU/day, rotate the injection pen to 30 graduations, and so on.

5. Selection of site

Subcutaneous injection. Routinely choose the subcutaneous abdominal wall injection, easy to self-operation, generally choose the injection point for the navel two weeks outside the three horizontal fingers, pinch the skin into the needle.

Precautions in injection:

1. Injection site disinfection: after selecting the injection site, take the injection point as the center, from the inside out; spiral disinfection, the diameter is about to be greater than 5cm, the injection site disinfection shall not be repeated, until the alcohol is completely evaporated;
2. Pinch the injected skin gently: after disinfection, one hand gently pinches the injected skin, the force should not be too strong to cause the skin to turn white or painful, and you should not use the whole hand to lift the skin in order to avoid pinching the muscle and skin together;
3. Injection: The inner cap of the injection needle is carefully placed vertically downwards, and the angle of the needle is selected according to the thickness of the skin; in general, the injection pen and the skin are at 90 degrees to enter the needle. After the needle is inserted into the body, slowly release the pinched skin with your left hand and fully press the injection push button until the dose display is 0 and a ticking tone can be heard.
4. Advancement of medication: The injection push button should be held tightly at all times after injection without letting go to ensure that all the medication is injected into the body.
5. Needle Removal: Do not remove the needle immediately after injection. The needle should be left under the skin for 6-10 seconds to immobilize the skin near the injection site and remove the needle quickly at the angle of entry.

6. Injection method

Routine disinfection of the injection site, the left thumb, forefinger can pinch up the abdominal fat layer, the right hand holds the pen vertically and quickly into the needle, the right thumb injects according to the injection button, the injection is completed, continue to stay in the subcutaneous for 6 to 10 seconds, and then quickly pull out the needle in the direction of the needle, do not use the swabs to press and knead the injection site, remove the needle according to the disposal of medical waste, and then replace with a new needle at the time of the next injection.

FAQ

How to choose the injection site?

Before each injection, the local skin condition of the injection site should be evaluated and checked, and areas with pain, hardness, bleeding, ecchymosis, and infection should be avoided.

What should I do if I have redness, swelling and hardness at the injection site?

You can rotate the injection site every day, the injection site as far as possible to avoid repeated injection, two consecutive injections can be 2-3 centimeters between the site, you can avoid the production of local hard knots, affecting the absorption of the liquid. If hard nodules have been produced, you can use thin slices of raw potato to apply external compresses, and if there is redness or swelling, consult a doctor promptly.

Can injections cause pain or numbness after injection due to low temperature (common in fall/winter)?

- The medication can be taken out of the refrigerator 10 minutes in advance and left to sit for a while before being injected.

- Pain may be caused by rapid injection speed and should be injected slowly.

- If the sharp pain is due to the injection irritating the peripheral nerves of the skin, the needle can be withdrawn and re-injected at a different injection site.

- Mental relaxation before injection can avoid painful injections.

How are medications stored?

- Store the whole box of unopened medication in the refrigerator at 2 to 8 degrees Celsius, refrigeration is prohibited, and violent shaking is prohibited.

- Put any unused medication back into the refrigerator with the pen after opening (the medication inside the pen does not need to be removed) Do not remove the pen until you have finished injecting each pen.

How are needles disposed of after injection?

After the injection, remove the injection needle, which is medical waste and can be taken back to the hospital in a mineral water bottle for disposal, so as not to pierce the cleaning staff.

Is it possible to adjust the dose myself?

In order to ensure the efficacy of the treatment, the dose should be adjusted according to the requirements of the doctor's instructions for injection, just in case, please pay attention to the head of the pen after each injection to see if there is a reduction in the amount of liquid normal, but remember not to detach the pen and the quill!

In the unlikely event that there is a problem with the quality of the pen or that there is an abnormal decrease in the amount of liquid due to an operational error, and you suspect that the injection is not effective, contact your healthcare provider immediately to deal with the situation! Of course this is a rare occurrence!

The information is from the Internet and is for reference only.