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Intramuscular injection is commonly used for medication administration. Medication administered in the muscle is generally quickly absorbed in the bloodstream, and avoids the first pass metabolism which occurs with oral administration. [1]
This is the earliest documented jet injector to administer water or medicine under enough pressure to penetrate the skin without the use of a needle. [ 20 ] 1920s: Diesel engines began to be made in large quantities: thus the start of serious risk of accidental jet-injection by their fuel injectors in workshop accidents.
In addition to pharmacological effects, rectal administration has some properties which can be advantageous for the use in medicine. Rectal administration can allow patients to remain in the home setting when the oral route is compromised.
A syringe being prepared for injection of medication. An injection (often and usually referred to as a "shot" in US English, a "jab" in UK English, or a "jag" in Scottish English and Scots) is the act of administering a liquid, especially a drug, into a person's body using a needle (usually a hypodermic needle) and a syringe. [1]
Rectal bulb syringe to administer smaller enemas. An enema , also known as a clyster , is the rectal administration of a fluid by injection into the lower bowel via the anus . [ 1 ] The word enema can also refer to the liquid injected, [ 2 ] [ 3 ] as well as to a device for administering such an injection.
In medicine, a bolus (from Latin bolus, ball) is the administration of a discrete amount of medication, drug, or other compound within a specific time, generally 1–30 minutes, [1] to raise its concentration in blood to an effective level.
Fragment of a hypodermic needle stuck inside the arm of an IV drug user (x-ray). Drug injection is a method of introducing a drug into the bloodstream via a hollow hypodermic needle, which is pierced through the skin into the body (usually intravenously, but also at an intramuscular or subcutaneous, location).
Intrathecal administration is a route of administration for drugs via an injection into the spinal canal, or into the subarachnoid space so that it reaches the cerebrospinal fluid (CSF).