Final answer:
Intramuscular (IM) injections are administered into muscle tissue using a needle 1 to 1.5 inches long and a gauge of 22 to 25. The injection is given at a 90-degree angle, and common medications include vaccines and antibiotics.
Step-by-step explanation:
An Intramuscular (IM) injection is given into the muscle tissue, usually in the deltoid, vastus lateralis, or ventrogluteal muscles. The needle length for an IM injection typically ranges from 1 to 1.5 inches for adults, and the gauge, which refers to the thickness of the needle, usually ranges from 22 to 25. The liquid medication is delivered via this syringe and is typically administered at a 90-degree angle to ensure the medication is deposited into the muscle tissue. The types of medications that might be given intramuscularly include vaccines, hormones, and antibiotics, among others.