A: the concentration at which the drug elicits 50% of its maximal effect
B: the maximal effect produced by the drug
C: the dose at which 50% of subjects exhibit a therapeutic response to a drug
D: the dose at which 50% of subjects dies
E: the dose at which 50% of subjects exhibit a toxic reaction
举一反三
- Drug efficacy refers to A: the range of diseases in which the drug is beneficial B: the maximal intensity of response that can be produced by the drug C: the therapeutic dose range of the drug D: the therapeutic index of the drug E: the minimal intensity of response that can be produced by the drug
- The<br/>side effects of the drug are() A: A<br/>reaction caused by an overdose B: A<br/>reaction to long-term medication C: At<br/>treatment dose, the drug produces a response unrelated to the purpose<br/>of treatment D: The<br/>toxicological effect of a drug, which is an unknown reaction E: It<br/>is a heterogenous reaction associated with heredity
- Which of the following belongs to the drug factors affecting drug efficacy? A: Dosage form B: Dose C: Age D: Gender E: Race
- After withdrawal of the drug, the drug concentration is below the threshold, but its pharmacological effects still exists. The phenomenon is called A: idiosyncratic reaction B: toxic reaction C: side reaction D: residual effect E: withdrawal reaction
- Which of the following adverse reactions is an altered physiological state produced by repeated administration of a drug which necessitates the continued presence of the drug to maintain physiological equilibrium? A: Idiosyncratic reaction B: Residual effects C: Drug dependence D: Rebound reaction E: Drug allergic reaction
内容
- 0
A loading dose is A: smaller than the maintenance dose B: unnecessary for benzylpenicillin (t1/2=30min) C: equal to the amount of drug which is eliminated in a dose interval D: necessary if a rapid onset of action of digoxin (t1/2=36-48),
- 1
Before administering a medication, the nurse must verify the rights of medication administration, which include: A: right patient, right bed, right drug, right route, right dose, and right time. B: right drug, right dose, right route, right time, right physician, and right documentation. C: right patient, right drug, right route, right time, right documentation, and right equipment. D: right patient, right drug, right dose, right concentration, right route, right time, and expiration date.
- 2
The concentration or dose at which drugs produce equivalent effects is called A: efficacy B: potency C: excitation D: inhibition E: agonist
- 3
ED50 means A: Median effective concentration B: Median toxic dose C: Median lethal dose D: Median effective dose
- 4
When the small dose of toxic drug mixing with several times the volume of diluents, we should use times mixing.