Four Types Of Injections You Should Know About

There are four types of injections, and we classify them according to the route of administration. Injectable drugs are of the parenteral type and come in two types of glass containers: ampoules and vials.

Ampoules are a closed system, have long necks and a constriction in the base. When you break the opening, or “neck”, you can easily pull out the fabric.

Vial is a closed system, has a short neck and a hard plastic stopper lined with metal. You must inject a volume of air equal to the volume of the substance to be extracted to extract the contents.

The drug may be ready for administration as it is or may require another substance to mix with it. Here are four types of injections, as well as the specific properties of each.

1. Intravenous injections

Medical personnel use intravenous administration of drugs in the following cases:

• Emergency situations
• Serotherapy
• Diluted medication

This is because it is the fastest route as the absorption of the medicine is instantaneous.

Types of injections: Intradermal injections

This is one of the types of injection used to perform diagnostic tests, skin tests such as allergy tests and to administer local anesthesia.

For intradermal injections, they must introduce an amount of medication equal to or less than 0.3 milliliters. They usually do this with a 1 milliliter syringe or with a short slanting needle, which is usually orange or transparent.

It can be used on parts of the shoulder, the central area of ​​the inner forearm or the upper middle back.

Procedure for intradermal injections

One hand tightens the skin in the area to inject, and the other introduces the needle, almost parallel to the skin and with the slope upwards. The medicine forms a blister. Finally, they remove the needle without putting pressure on the blister.

3. Subcutaneous injection types

This type of injection introduces the medicine into the subcutaneous tissue. The most commonly used substances on this route are:

• Vaccines
• Heparins
• Insulin

The volume to be administered varies between 1.5 and 2 milliliters with syringes of 1 or 2 milliliters and an orange, slanted needle. Furthermore, there is a slow absorption path, and the most commonly used areas are the outer area of ​​the arm, the anterior area of ​​the thigh, as well as the abdomen and the scapular area of ​​the back.

Approach

After disinfecting the application area, the doctor takes a skin fold. Then they insert the needle at a 45 degree angle – with the needle bevel facing up. They must pull the plunger to confirm that they have not punctured a blood vessel.

However, the angle of administration of heparin changes. Therefore, it is important to remind the patient not to touch or touch the puncture site to avoid bruising.

Types of injections: Intramuscular injections

This type of injection is for administering medication to the muscle. The most common medicines for this route are vaccines and other medicines such as painkillers, anti-inflammatory drugs, corticosteroids and antibiotics.

It is a faster absorption pathway than the subcutaneous one. In addition, the effect is displayed in about 15 minutes. The volume to be injected is less than 15 milliliters, and the syringe is two or five milliliters with a medium oblique needle and a green color for adults.

The most common areas of administration are the upper outer quadrant of the gluteal muscle, the deltoid muscle and the vastus lateralis of the leg.

Approach

To administer these injections , medical personnel insert a needle directly into the muscle at a 90-degree angle. They then adjust the pre-filled syringe and withdraw the plunger to ensure that they do not puncture a capillary.

Then they inject the medicine slowly, as it is a painful route. This is because the muscle fibers stick together and loosen when the fluid enters, thus causing pain. Then medical personnel remove both the syringe and the needle at the same time when you are done.

Types of injections depend on the drug and the situation

Finally, as you could see through this article, the routes of administration for parenteral drugs are several and depend on several factors. You are a little more informed now about these procedures, and then you know exactly what happens the next time you need to go to the hospital!