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38 Cards in this Set

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Drug
Any chemical that can affect living processes
Phamacology
the study of drugs and their interactions with living systems
Clinical Phamacology
the study of drugs in humans
pharmacotherapeutics
the use drugs to diagnosis, prevent, or treat disease or to prevent pregnancy
Ideal Drug Properties
Effectiveness, Safety, Selectivity(no drug only elicits only a desired effect - side effects), Reversibility, Predictability, Ease of administration, Minimal drug interactions
Therapeutic Objective
The objective of a drug therapy is to have the maximum effectiveness with minimum harm.
Effectiveness
An effective drug is one that elicits the desired responses for which it is given for
Safety
There is NO such thing as a safe drug
Pharmacokinetics
Movement of meds thru the body

ADME

Absorptions, Distribution, Metabolism, Excretion
Four major pharmacokinetics processes
Pharmacodynamics
Impact of drugs on body & how they do it
Absorption
time the drug takes to get from the site of entry until it gets to the blood stream (or GI - oral)
Distribution
Blood stream to the site of action
Metabolism
Biotransformation of the medication (liver)
Excretion
Elimination of Drug (kidneys)
Enteral
Oral - GI tract
Parenteral
Injection - outside of GI
therapeutic effect
the largest effect that a drug can have
Therapeutic Index
Is a measure of the drugs safety
TI = LD(50%)/ED(50%)
High/Large therapeutic dose means the drug is safer
Lethal Dose/Therapeutic Response
Agonist
will "light up" for intended action
Antagonist
will block receptor and not allow intended reponse
Bioavailablility
are equal if the drug they contain is absorbed @ the same rate and to the same extent
Hepatotoxic
Liver toxicity
Empiric Therapy
the method of treating a disease based on observation and experience w/o understanding of the cause
First-pass effect
drugs that get diminished due to the oral route-->GI - liver - bloodstream- it loses some "power" along the way by being absorbed in the liver first
Half Life
Amount of time it takes for half the drug to be excreted/inactive - Day 5 after 4 half lives is the average
5 Rights of Medication Administration
Right Patient
Right Drug
Right Time
Right Dose
Right Route
Idiosyncratic effect
an uncommon drug response caused by a predisposing genetic condition
Iatrogenic Disease
A disease produced by drugs or the act of physician
carcinogenic effect
ability to cause cancer
teratogenic effect
anything that effects the normal prenatal development
IOM
Chemotherapy
Can be carcinogenic
Causes tissue necrosis w/extravasation
Considered a biohazard spill w/ significant risks to those who come into direct contact with the drug
Cancer
IOM
metformin
Small but potentially fatal risk of lactic acidosis w/ admin
Metformin is a useful anti-hyperglycemic agent but drug mortality is associated with drug-induced lactic acidosis
renal or hepatic disease, alcoholism and conditions w/ hypoxia are contraindications
Metformin induce lactic acidosis risks: sepsis, dehydration, high dosages and increased age
lactic a
IOM
IV Potassium
Risk of overdose which can lead to life threatening dysrhthmias
HEART ATTACK!
IOM
Saline >0.9% concentration
High risk for injury caused by severe fluid shift due to changes in serum osmolality caused by IV administration of hypertonic saline solution
Dehydration - too much salt
IOM
Heparin UFH and LMWH
Can be confused w/ insulin due to packaging and are high use meds, dosed in units, and are often given as continuous IV
don't get confused with...
IOM
Insulin
Can be confused w/ heparin due to packaging... see heparin
don't get confused with...
Neuromuscular Blockers
Complete paralysis, including respiratory muscles
If given in error to a patient w/out mechanical ventilation, patient will experience respiratory arrest
PCA
Patient controlled analgesia
PCA errors regarding concentration and rate can cause severe respiratory depression or ineffective pain control for the patient