Intramuscular (IM) injection is a method of administering medication, nutrients, and fluids directly into a muscle. This route of administration is often used for drugs that require a longer duration of action, larger volumes of medication, or cannot be absorbed through the digestive system. The nutrients are circulated to the bloodstream, bypassing the metabolism that usually happens with oral administration.

IV Push is described as the rapid administration of medication or fluids directly into a patient's vein using a syringe. This method allows the medication or fluid to enter the bloodstream quickly, similar to IM Injection but at a higher volume.