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        | Study of drugs and their action on living organisms |  | 
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        | drugs have several names assigned to them |  | Definition 
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        | Chemical Name (scienticfic name) |  | Definition 
 
        | Gives the exact chemical makeup of the drug and placing of the atoms or molecular structure; the chemical name is not capitalized |  | 
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        | Generic Name (nonproprietary) |  | Definition 
 
        | Name given to a drug before it becomes official; may be used in all countries |  | 
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        | Name listed in The United States Pharmacopeia National Formulary; may be the same as the generic name |  | 
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        | Name that is registered by the manufacturer and is followed by the trademark symbol; the name can be used only by the manufacturer; a drug may have several trade names; depending on the number of manufacturers; the first letter of the trade name is capitalized |  | 
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        | once the drug is approved by the FDA it is assigned one of the following categories |  | Definition 
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        | designated by the federal government as potentially harmful unless their use is supervised by a licensed healthcare provider |  | 
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        | designated by the FDA as safe (when taken as directed) and can be obtained without a prescription. Also referred to as OTC over the counter |  | 
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        | drugs that have the potential for abuse and dependency |  | 
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        | is a compulsion or craving to use a substance to obtain a pleasurable experience; it is the mind's desire for the repeated administration of a drug. |  | 
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        | oral drugs go through three phases |  | Definition 
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        | the drug dissolves. drugs must be soluable to be absorbed. |  | 
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        | Activities within the body after a drug is administered. |  | 
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        | Follows administation & is the process by which a drug is made available for the body to use. |  | 
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        | Cellular energy is used to move the drug from an area of low concentration to one of high concentration. |  | 
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        | No cellular energy is used to move from an area of high concentration to an area of low concentration (small molecules Diffuse across the cell membrane) |  | 
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        | Cells Engulf the drug particle. |  | 
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        | Action byte which an oral drug is absorbed and carried directly to the liver |  | 
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        | The systemic circulation distributes drugs to various body tissues or target sites. |  | 
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        | also called "biotransformation" |  | 
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        | Metabolites may undergo further.... |  | Definition 
 
        | metabolism or may be excreted from the body unchanged. |  | 
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        | *Most drugs are metabolized by the liver although the kidneys |  | Definition 
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        | The elimination of drugs from the body called "excretion". |  | 
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        | * After the liver renders drugs inactive |  | Definition 
 
        | the kidney excretes the inactive compounds from the body. |  | 
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        | Patients with kidney disease may require |  | Definition 
 
        | a dosage reduction and careful monitoring of kidney function. |  | 
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        | the time required for the body to eliminate 50% of the drug. |  | 
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        | Knowledge of the half-life of a drug is important |  | Definition 
 
        | in planning the frequency of dosing. |  | 
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        | Example: drugs with a short half-life (2-4 hs) need to be administered frequently |  | Definition 
 
        | drugs with a long half-life (21-24 hrs) requires less frequent administration. |  | 
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        | Three factors that are important when considering Pharmacokinectics |  | Definition 
 
        | 1. Onset of action 2. Peak concentration & 3. Duration of action |  | 
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        | time between administration of the drug and onset of its therapeutic effect. |  | 
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        | when absorption rate equals the elimination rate. (not always the time of peak response) |  | 
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        | length of time the drug produces a therapeutic effect. |  | 
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        | is the study of the drug mechanisms that produce biochemical or physiologic changes in the body. |  | 
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        | Receptor-Mediated Drug Action |  | Definition 
 
        | Many drugs act through drug-receptor interaction. |  | 
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        | is a drug that binds with a receptor and stimulates the receptor to produce a therapeutic response. |  | 
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        | is a drug that joins with receptors but does not stimulate the receptors. The therapeutic action in this case consists of blocking the receptor's function. |  | 
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        | is any substance that causes abnormal development of the fetus |  | 
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        | Patients may experience one or more adverse reactions or side effects when they are given a drug. Adverse reactions are undesirable dug effects. Adverse reactions may be common or may occur infrequently. |  | 
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        | is an immediate hypersensitivity reaction. Allergy to a drug usually begins to occur after more than one dose of the drug is given. |  | 
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        | substance that is capable of inducing a specific immune response. |  | 
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        | When the body responds to the dug as an antigen a series of events occurs in an attempt to render the invader harmless. Lymphocytes respond by forming antibodies (protein substances that protect against antigens) |  | 
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        | is an extremely serious allergic drug reaction that usually occurs shortly after the administration of a drug to which the individual is sensitive. |  | 
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        | Anaphylactic Shock Respiratory Symptoms |  | Definition 
 
        | Bronchospasm * Dyspnea * Feeling of fullness in the throat * Cough * Wheezing |  | 
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        | Anaphylactic Shock Cardiovascular Symptoms |  | Definition 
 
        | Extremely Low Blood Pressure * Tachycardia (heart rate >100bpm) * Palpitations * Syncope * Cardiac Arrest. |  | 
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        | Anaphylactic Shock Integumentary Symptoms |  | Definition 
 
        | Urticaria (hives) * Angioedema * Pruritus (itching) * sweating |  | 
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        | Anaphylactic Shock Gastrointestinal Symptoms |  | Definition 
 
        | Nausea * Vomiting * Abdominal Pain |  | 
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        | is another type of allergic drug reaction it is manifested by the collection of fluid in subcutaneous tissue. Areas most commonly affected are the eyelids |  | 
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        | is a term used to describe any unusual or abnormal reaction to a drug |  | 
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        | is the study of ways that specific genes can enhance sensitivity or resistance to certain drugs. |  | 
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        | is a term used to describe a decreased response to a drug |  | 
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        | may be seen in people with liver and kidney disease because these organs are the major sites for the breakdown and excretion of must drugs. |  | 
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        | A Cumulative Drug Effect Occurs |  | Definition 
 
        | when the body is unable to metabolize and excrete one (normal) dose of a drug before the next dose is given |  | 
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        | Most drugs can produce toxic or harmful reaction if administered in large dosages or when blood concentration levels exceed the therapeutic level. |  | 
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        | It is important for the nurse administering medications to aware of.. |  | Definition 
 
        | various drug interactions that can occur especially Drug-Drug Interactions and Drug-Food Interactions. |  | 
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        | Drug-Drug Interaction occurs |  | Definition 
 
        | when one drug interacts with or interferes with the action of an of another drug. |  | 
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        | An Additive Drug Reaction occurs |  | Definition 
 
        | when the combined effect of two drugs is equal to the sum of each drug given alone. For example |  | 
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        | when drugs interact with each other and produce an effect that is greater than the sum of their separate actions. |  | 
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