pharmacokinetics as the basis of medication actions Flashcards
describe absorption
Passage of medication molecules into the blood from the site of administration
what factors influence absorption
- Route of administration
- Ability of a medication to dissolve
- Blood flow to the site of administration
- Body surface area
- Lipid solubility
describe distribution
Circulation
Membrane permeability
Protein binding
describe metabolism
Medications are metabolized into a less-potent or inactive form
during metabolism what process occurs
biotransformation
what influences biotransformation to happen during metabolism
enzymes that detoxify, break down, and remove active chemicals
where does metabolism occur in the body
primarily in the liver
what other organs in the body may be involved during metabolism
GI tract, the lungs, and the kidneys.
describe excretion
Medications exit the body
where does excretion (medications exit the body) takes place in the body
primarily takes place in the kidneys via urine
what are the other routes of where excretion can take place
saliva
sweat
tears
feces
what parts of the body are involved in excretion
Kidney
* Liver
* Bowel
* Lungs
* Exocrine glands
what does the chemical make up of medication determine
the organ of excretion