Pharmacy technicians should have a basic understanding of the factors that control drug concentration at the:
A. therapeutic level
B. toxic level
C. blood circulation
D. site of action
d
Rationale: The site of action in regards to the factors that control drug concentration is important for pharmacy technicians to understand. Although toxic and therapeutic levels of a drug are important to know, they are parameters for administration that are easily referenced. Drug concentration in the blood circulation is not as critical as the site of the drug's action be-cause most drugs act systemically and are found in varying amounts through the circulatory pathways. The site of action focuses on what the drug's intended effects should be in the intended area of the body.
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