The therapeutic range of an antimicrobial is the
A) ratio of the dose a patient can tolerate to the effective dose.
B) range of microorganisms the antimicrobial effects.
C) range of concentrations at which the antimicrobial is both effective and non-toxic.
D) ratio of the concentration of antimicrobial in the blood to the oral dose.
E) length of time the medication persists in the body after a single dose.
C
Bloom's Taxonomy: Knowledge
Section: Clinical Considerations in Prescribing Antimicrobial Drugs
Learning Outcome: 10.18
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Movement of cellular material from the endoplasmic reticulum to the outside of the cell is an example of:
A. exocytosis. B. endocytosis. C. transcytosis. D. phagocytosis.
The chromosomes and genes are actually replicated during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase.
Which time period has the greatest richness of fossilized invertebrates?
A) Cambrian B) Carboniferous C) Cretaceous D) Cenozoic
Bdelloid rotifers are microscopic freshwater invertebrates. No one has ever seen a male. Thus researchers hypothesized that this species reproduces solely by asexual means. What evidence supports this hypothesis?
A. Bdelloid rotifers exhibit much more variation in their pairs of homologous genes than most sexually reproducing species. B. Males cannot be distinguished from females. C. Because of the evolutionary disadvantage of asexual vs. sexual reproduction, bdelloid rotifers are in danger of extinction. D. Over time, bdelloid rotifers have increased their chromosome number.