b12 injection subcutaneous vs.intramuscular π Angles & Routes of Injections (ID β SC β IM β IV), π§΄ Intradermal (ID), β‘οΈ Layer: Epidermis β Dermis (very superficial), β‘οΈ Angle: π 10β15Β°, β‘οΈ Purpose: TB (Mantoux) test β Allergy testing, β‘οΈ A Guide to Proper Injection
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