Pharmacology & Nursing Role Flashcards
What is pharmacology?
Study of drugs and their interactions with living systems.
What is a drug?
Any chemical that can affect living processes
What is clinical pharmacology?
Study if drugs in humans
What are therapeutics?
The use of drugs to diagnosis, prevent, or treat disease or to prevent pregnancy.
There most important properties of an ideal drug:
Effectiveness
Safety
Selectivity
What are some additional properties of an ideal drug?
Reversible action
Predictability
Ease of administration
Low cost
Is there an ideal drug?
No
The objective of drug therapy is what?
Provide maximum benefit with minimum harm.
When giving administering a medication important determinants of drug responses are:
Dosage, size of person, route and timing.
What does pharmacokinetics involve?
Drug movement through the body and gets to it’s site of action (what the body does to the drug).
Ex. Absorption process.
What is the absorption process?
Process that occurs from the time of a drug enters the body to the time it enters the bloodstream to be circulated.
What is pharmacodynamics?
Impact of drugs on the body.
Ex. Drugs exert their effects by chemically binding with receptor cells
What are sources if individual variation?
Physiologic (age, gender weight)
Pathological (diminished function of kidneys and liver)
Genetic
Drug interactions.
How can genetic variables affect individual variation?
Can alter metabolism of drugs and predispose patient to unique interactions.
True or false. There is no such thing as a safe drug?
True. A drugs can cause harm