This is an invaluable reference tool for all nursing students, recently qualified and practising nurses, and people training and working in related fields such as midwifery and health visiting. The text is enhanced by over 100 helpful illustrations and tables. ![]() Written by medical and nursing specialists, this trusted dictionary covers the theory and practice of nursing, and includes up-to-date entry-level web links. In addition to specific nursing terms, there are many entries in the fields of medicine, anatomy, physiology, psychiatry, nutrition, and pharmacology (including new drugs recently introduced into medical practice). The Dictionary provides comprehensive treatment of the ever-expanding vocabulary of the nursing professions. New coverage includes recent legislation such as the Mental Capacity Act, and developing areas such as quality of life and nurse-led clinics. The new edition has been fully updated and revised to take account of developments in nursing practice and related fields. Therapeutic Window: The dosing window in which the safest and most effective treatment will occur.This best-selling Dictionary provides comprehensive and authoritative coverage of all aspects of nursing. Medication with a large therapeutic index is safer than a medication with a small therapeutic index. Therapeutic Index: A quantitative measurement of the relative safety of a drug that compares the amount of drug that produces a therapeutic effect versus the amount of drug that produces a toxic effect. Side Effect: Effect of a drug, other than the desired effect, sometimes in an organ other than the target organ. The supply and administration of medicines is an area of practice in which a number of healthcare professionals (e.g. A “non-selective” drug can bind to many different and unpredictable receptor sites with potential side effects. Selectivity: A “selective” drug binds to a primary and predictable site creating one desired effect. Potency: The drug dose required to produce a specific intensity of effect. ![]() Pharmacy: The science of the preparation of drugs. Pharmacology: The science dealing with actions of drugs on the body. ![]() Pharmacokinetics: The study of how the body absorbs, distributes, metabolizes, and eliminates drugs. Pharmacogenetics: The study of how a person’s genetic make-up affects their response to medicines. Pharmacodynamics: The study of how drugs act at target sites of action in the body. Peak: When the maximum concentration of a drug is in the bloodstream. Onset: When a medication first begins to work and exerts a therapeutic effect. Metabolism: The breakdown of a drug molecule via enzymes in the liver (primarily) or intestines (secondarily). Mechanism of Action: How a medication works at a cellular level within the body. The slope of the curve is characteristic of the particular drug-receptor interaction.ĭuration: The length of time that a medication is producing its desired therapeutic effect.Įfficacy: The maximum effect of which the drug is capable.Įxcretion: The final stage of pharmacokinetics the process whereby drug byproducts and metabolites are eliminated from the body.įirst Pass Effect: The inactivation of orally or enterally administered drugs in the liver and intestines. Absorption: The first stage of pharmacokinetics: medications enter the body and travel from site of administration into the body’s circulation.Īdverse Effect: An unintended and potentially dangerous pharmacological effect that occurs when a medication is administered correctly.Īffinity: The strength of binding between drug and receptor.Īgonist: A drug that binds to a “receptor” and produces an effect.Īntagonist: A molecule that prevents the action of other molecules, often by competing for a cellular receptor opposite of agonist.īioavailability: The presence of a drug in the blood stream after it is administered.īlood-Brain Barrier: A nearly impenetrable barricade that is built from a tightly woven mesh of capillaries cemented together to protect the brain from potentially dangerous substances such as poisons or viruses.ĭistribution: The second stage of pharmacokinetics the process by which medication is distributed throughout the body.ĭose-Response: As the dose of a drug increases, the response should also increase.
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