Key terms Test 1 Flashcards
Intrathecally
delivered directly to the spinal cord
Sublingually
absorption of medication placed under the tongue
Intravenously
direct injection into the vein
Therapeutic index
most closely related to drug safety
Clearance rate
dependent on organ ability to extract blood from plasma
potency
threshold dose that produces give response
efficacy
dosage range over which drug has desired effect
volume of distribution
ratio of drug administered to concentration in the plasma
tissue permeability
highly lipid soluble molecules move more easily cross membrane
Oral administration
major site of drug metabolism in alimentary tract
liver
first pass effect- med goes from stomach to liver and is greatly reduced before reaching bloodtream
first pass effect
metabolism/destruction of a drug before reaching the site of action
half life
duration of compound activity in the body
antagonist drug
reversal of effect of acute drug overdose
drug hydrolysis
reaction that breaks compound into separate parts
Mu receptor antagonist
mechanism of action for a drug given to reverse opioid effects
NSAIDs
GI bleed
kidney
primary organ for excreting medications
IV drugs concern
increased risk of toxic dose
bioavailability
variability of drug in the bloodstream