The picture is about different injection routes and the corresponding angles and tissue layers involved:

• Intramuscular (IM): Injected at a 90° angle into the muscle layer.

• Subcutaneous (Sub-Q): Injected at a 45° angle into the subcutaneous tissue (fatty layer under the skin).

• Intravenous (IV): Injected at a 25° angle into a vein.

• Intradermal (ID): Injected at a 10-15° angle into the dermis (layer of skin below the epidermis).

Raiyyan Tahsan. Date:- 25-06- 2025 Wednesday Time:-06-26-49 Pm