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Parenteral Route of Drug Administration
Description
This template compares four parenteral drug administration routes, intramuscular at a 90 degree needle angle, subcutaneous at 45 degrees, intravenous at 25 degrees, and intradermal at 10 to 15 degrees, each shown with a syringe entering a cross-section of skin. The skin cross-section labels the epidermis, dermis, subcutaneous tissue, and muscle layers that each needle angle is designed to reach.
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