FP-C #7 Flashcards
Qualitative tests
analysis that can identify whether or not a substance is present (uses colors)
Inotropic
process that influences the contractility of muscular tissue (can be positive or negative)
Chronotropic
process that influences the heart rate (can be positive or negative)
First-order elimination
characterized by a medication’s rate of elimination being dependent on its concentration in plasma
First-pass effect
the initial metabolism in the liver of a drug absorbed from the gastrointestinal tract before the drug reaches systemic circulation through the bloodstream
Sympathomimetic
medication that mimics the effects of the sympathetic nervous system
Tolerance
the diminishing effect with regular use of the same dose of a medication
Mechanism of action
explains how a drug works and produces its desirable and sometime undesirable effects
Interference
a direct biochemical interaction between two drugs
Idiosyncrasy
an abnormal reaction to a medication that most persons DO NOT experience
Therapeutic index
the ratio between the toxic and therapeutic concentrations of a drug
Half-life
the time required to eliminate half of the amount of the medication from the plasma
Drug interaction
alteration in the pharmacologic activity of a given drug caused by the presence of one or more additional drugs
Depolarizing agents
medications that cause neuromuscular blockake by binding and briefly activating receptor sites at the neuromuscular junction, preventing further activation of these sites and causing chemical paraylsis
Duration of action
the length of time the concentration of a drug in the blood or tissues is sufficient to elicit a pharmacological response