Pharmacodynamics exam questions with answers

Pharmacodynamics exam questions with |\ |\ |\ |\




answers

The plasma concentration at which a drug no longer
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produces serious adverse effects is known as the toxic
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level. - CORRECT ANSWERS ✔✔False
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The therapeutic index is a measure of the relative
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effectiveness of a drug. - CORRECT ANSWERS ✔✔False |\ |\ |\ |\ |\ |\ |\




Drugs have a specific affinity for their specific receptors
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on a cell surface or within a cell. - CORRECT ANSWERS
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✔✔True


Half-life is the time required for the current serum
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concentration to double. - CORRECT ANSWERS ✔✔False |\ |\ |\ |\ |\ |\




The half-life of elimination generally remains stable for
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most drugs. - CORRECT ANSWERS ✔✔True
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Some drugs are completely safe. - CORRECT ANSWERS
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✔✔False

,Efficacy is the degree to which a drug is able to produce
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the desired effect. - CORRECT ANSWERS ✔✔True
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The latent period is the point at which a drug effect is no
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longer seen. - CORRECT ANSWERS ✔✔False
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Side, adverse, and toxic effects of drugs always are
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manifested immediately. - CORRECT ANSWERS ✔✔False |\ |\ |\ |\ |\




Radiopaque contrast media elicit their desired effects |\ |\ |\ |\ |\ |\ |\



through the radiopaque iodine contained in their
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structure. - CORRECT ANSWERS ✔✔True |\ |\ |\ |\




Generally thought to be catalysts responsible for changes
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in biochemical reactions, ___________ occur throughout
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the body systems. - CORRECT ANSWERS ✔✔Enzymes
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A ____________ is a predictable pharmacologic action on
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body systems other than the action intended - CORRECT
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ANSWERS ✔✔Side effect |\ |\




When two drugs are combined and cause a
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pharmacologic response that is greater than it would |\ |\ |\ |\ |\ |\ |\ |\



have been if the drugs had been given individually, this is
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, known as _____________. - CORRECT ANSWERS
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✔✔Synergism


The method by which a drug elicits effects is known as
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the ____________. - CORRECT ANSWERS ✔✔Mechanism of
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action


The organ in which the _____________ occurs is generally
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called the target organ - CORRECT ANSWERS ✔✔Desired
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effects


A ______________ occurs when a drug resembles the
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substrate to which an enzyme usually attaches. -
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CORRECT ANSWERS ✔✔Drug-enzyme interaction|\ |\ |\




After drug administration the amount that reaches and
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remains in the systemic circulation depends on
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___________, ____________, _____________, and _____________.
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- CORRECT ANSWERS ✔✔Rate of absorption, distribution,
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metabolism, and elimination |\ |\




Any unwanted effect from a drug is termed _____________.
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- CORRECT ANSWERS ✔✔Adverse effect
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