What are the preferred Intramuscular sites?

There are four accepted body sites for Intramuscular injections.

1.The central region of the Deltoid muscle of the shoulder.

This area is for only small injections of 1 ml or less, ie for vaccinations.

The other three regions are all in the lower body area.

2. The middle of the thigh in the Vastus Lateralis muscle of the quadriceps muscle group of the upper leg .

3 The Ventrogluteal muscle in the hip on the side of the hip.

4. The Dorsogluteal muscle of the buttocks. Divide one buttock into four quadrants upper and lower. The injection should always be in the upper quadrant.