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Needle insertion angles for 4 types of injection: intramuscular, subcutaneous, intravenous, and intradermal Injections are classified in multiple ways, including the type of tissue being injected into, the location in the body the injection is designed to produce effects, and the duration of the effects.
Intravenous therapy (abbreviated as IV therapy) is a medical technique that administers fluids, medications and nutrients directly into a person's vein.The intravenous route of administration is commonly used for rehydration or to provide nutrients for those who cannot, or will not—due to reduced mental states or otherwise—consume food or water by mouth.
The butterfly's precise placement facilitates venipuncture of thin, "rolling", fragile, or otherwise poorly accessible veins. The butterfly's shallow-angle insertion design facilitates venipuncture of very superficial veins, e.g. hand, wrist, or scalp veins (hence name "scalp vein" set).
The most common site of insertion is the antero-medial aspect of the upper, proximal tibia as this site lies just under the skin and is easily located. Other insertion sites include the anterior aspect of the femur, the superior iliac crest, proximal humerus, proximal tibia, distal tibia and the sternum (manubrium). [1]
The term injection encompasses intravenous (IV), intramuscular (IM), subcutaneous (SC) and intradermal (ID) administration. [35] Parenteral administration generally acts more rapidly than topical or enteral administration, with onset of action often occurring in 15–30 seconds for IV, 10–20 minutes for IM and 15–30 minutes for SC. [36]
Comparison of angle of intramuscular injection with other injection types An intramuscular injection can be administered in multiple different muscles of the body. Common sites for intramuscular injection include: deltoid , dorsogluteal , rectus femoris , vastus lateralis and ventrogluteal muscles.
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Mantoux intradermal injection Intradermal needle insertion angle compared with other injection types.. The traditional procedure of ID injection known as the Mantoux procedure (as used in the Mantoux test) involves injecting at angle of administration of 5 to 15 degrees angle, almost against the skin.