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Unit 2 Pharmacology
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Medication
any substance that modifies the body functions while taken
pharmacology
the study of chemicals that affect the body's functioning
generic name
named by original manufacture and active ingredient
trade name
brand name
3 types of drug preparations
Oral
Topical
Parenteral
Fastest drug preparation
Parenteral IV
Pharmacokinetics
effect of the body on the drug
4 phases of pharmacokinetics
1. Absorption
2. Distribution
3. Metabolism
4. Excretion
Pharmacokinetics-Absorption
Process where a drug is transferred from the site of entry to the body to the blood stream.
Acid easier to absorb in stomach
Basic(alkaline) better absorbed in sm. intestine
increased blood flow increased absorption
Leading Dose
Large starting dose
maintenance dose
lower dose for daily use
onset of action
time required time for drug to elicit therapeutic response
therapeutic range
concentration of drug in the blood that produces the desired effect w/o causing toxicity
peak level
highest concentration of the drug in the plasma after absorption is complete(time required for drug to reach maximum response)
trough level
lowest concentration in the blood( drawn 30 min before next dose)
half life
amount of time it takes for 50% of the drug to be eliminated from the body
Pharmacokinetics-Distribution
after absorption into the bloodstream the drug is distributed throughout the body
pharmacokinetics-metabolism
the change of the drug from its original form to a new form: change occurs in the liver
pharmacokinetics-excretion
after drug is broken down by metabolism it is excreted from the body-kidneys do this. Bad kidneys= slower excretion
pharmacodynamics
the process by which drugs alter cell physiology and affect the body
ex. turn on or off or block or promote body responses
Author:
rmadli103
ID:
284094
Card Set:
Unit 2 Pharmacology
Updated:
2014-09-25 18:39:55
Tags:
pharmacology
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Description:
RCTC NURS 1117 Pharmacology Unit 2 2014
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