What do drug blood levels indicate? a. They confirm if the ...

[crobinson2013]

What do drug blood levels indicate?
 
  a. They confirm if the patient is taking a generic form of a drug.
  b. They determine if the patient has sufficient body fat to metabolize the drug.
  c. They verify if the patient is taking someone else's medications.
  d. They determine if the amount of drug in the body is in a therapeutic range.

Question 2

What occurs when two drugs compete for the same receptor site, resulting in increased activity of the first drug?
 
  a. Desired action
  b. Synergistic effect
  c. Carcinogenicity
  d. Displacement

[Viet Thy]

Answer to Question 1

ANS: D
The amount of drug present may vary over time and the blood level must remain in a therapeutic range in order to obtain the desired result. Generic drugs do not necessarily produce a different drug blood level than proprietary medications. Body fat is not measured by drug blood levels. Drug blood levels only measure the amount of drug in the body; they do not determine the source of the medication.

Answer to Question 2

ANS: D
The displacement of the first drug from receptor sites by a second drug increases the amount of the first drug because more unbound drug is available. An expected response of a drug is the desired action. A synergistic effect is the effect of two drugs being greater than the effect of each chemical individually or the sum of the individual effects. Carcinogenicity is the ability of a drug to cause cells to mutate and become cancerous.

[crobinson2013]

Excellent

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