Final answer:
Intramuscular injections are used to deliver medication deep into the muscles. Common sites include the arm, thigh, and buttocks. Needle size, gauge, length, angle, and volume can vary depending on the specific medication.
Step-by-step explanation:
Intramuscular (IM) injections are used to administer medication deep into the muscles, allowing for quick absorption. Common sites for IM injections include the deltoid muscle in the arm, the vastus lateralis muscle in the thigh, and the gluteus maximus muscle in the buttocks. The needle size for IM injections typically ranges from 1 to 1.5 inches in length, with a gauge range of 20 to 25. The angle of insertion for IM injections is 90 degrees, and the volume of medication can vary depending on the specific medication being administered.