intrathecal injection

injection /in·jec·tion/ (in-jek´shun)

1. the forcing of a liquid into a part, as into the subcutaneous tissues, the vascular tree, or an organ.

2. a substance so forced or administered; in pharmacy, a solution of a medicament suitable for injection.

---

hypodermic injection  subcutaneous i.

intracutaneous injection  intradermal i.

intracytoplasmic sperm injection  (ICSI) a micromanipulation technique used in male factor infertility, with insertion of a spermatocyte directly into an oocyte.

intradermal injection  one made into the dermis or substance of the skin.

intramuscular injection  one made into the substance of a muscle.

intrathecal injection  injection of a substance through the theca of the spinal cord into the subarachnoid space.

intravenous injection  one made into a vein.

jet injection  one made through the intact skin by an extremely fine jet of the solution under high pressure.

lactated Ringer's injection  a sterile solution of calcium chloride, potassium chloride, sodium chloride, and sodium lactate in water for injection, given as a fluid and electrolyte replenisher.

Ringer's injection  a sterile solution of sodium chloride, potassium chloride, and calcium chloride in water for injection, used as a fluid and electrolyte replenisher.

subcutaneous injection  one made into the subcutaneous tissues.

---

intrathecal injection,

the introduction of a hypodermic needle into the subarachnoid space for the purpose of instilling a material for diffusion throughout the spinal fluid.