Question | Answer |
atomic weight | the weight of a single atom of an element compared with the weight of a single atom of hydrogen |
electrolytes | substances such as mineral salts that carry an electrical charge when dissolved in a solution |
infusion | the administration of a large volume of liquid medication given parenterally over a long period |
injection | a method of administering medications in which a syringe with a needle or cannula is used to penetrate through the skin or membrane into the tissue below |
intramuscular (IM) injection | an injection given into the aqueous muscle tissue |
intravenous (IV) infusion | the injection of fluid into the veins |
milliequivalent (mEq) | the ratio of the weight of a molecule to its valence, used to measure the concentration of electrolytes in a volume of solution; also an amount of medication that will provide the patient with a specific amount (equivalent amount) of an electrolyte |
millimole (mM) | molecular weight expressed in milligrams |
molecular weight | the sum of the atomic weights of all atoms in one molecule of a compound |
parenteral | administered by injection and not by way of the gastrointestinal system |
powder volume (pv) | the space occupied by dry pharmaceuticals, calculated as the difference between the final volume and the volume of the diluting ingredient, or the diluent volume; the amount of space occupied by lyophilized (freeze-dried) medication in a sterile vial, use |
ratio strength | a means of describing the concentration of a liquid medication based on a ratio such as a grams:b milliliters |
subcutaneous (SC) injection | an injection given into the vascular, fatty layer of tissue under the skin |
unit | the amount of activity associated with a medication that has a biological impact on a patient |
valence | the ability of a molecule to bond, as indicated by its positive or negative charge, represented by a superscript plus or minus sign next to an element's chemical symbol |