General Principles Flashcards
Absorbtion
A drug is moved from the site of administration to body fluids; first process during pharmacokinetics.
Adverse Reaction
Undesirable drug efffect
Allergic Reaction
Hypersensitivity reaction by the immune system; it presents as itching, hives, swelling, and difficulty breathing
Anaphylactic shock
Sudden, severe hypersensitivity reaction with symptoms that progress rapidly and may result in death if not treated; also called anaphylactic reaction or anaphylactoid reaction.
Angioedema
Localized wheals or swellings in subcutaneous tissues or mucous membranes, which may be caused by an allergic response; also called angioneurotic edema
Bioavailability
The proportion of a drug available to body tissues when it reaches the circulatory system
Controlled Substances
Drugs that have the potential for abuse and dependency, both physical and psychological
Cumulative drug effect
When the body is unable to metabolize and excrete one dose of a drug before the next is given
Complementary/alternative medicine (CAM)
Group of diverse medical practices or products not presently part of conventional medicine
Distribution
Drug moves from circulation to body tissue or a target
Drug idiosyncrasy
Any unusual or abnormal response normally expected to a specific drug and dosage
Drug tolerance
Decreased response to a drug, requiring an increase in dosage to achieve the desired effect
Excretion
Elimination of a drug from the body
First-pass effect
Action by which an oral drug is absorbed and carried directly to the liver, where it is inactivated by enzymes before or enters the general bloodstream
Half-life
Time required for the body to eliminate 50% of a drug