When a drug, such as an antibiotic, is classified as a legend ...

[lbcchick]

When a drug, such as an antibiotic, is classified as a legend drug, this means that:
 
  a. the drug may be sold directly to the consumer without a prescription.
  b. it is a controlled substance, regulated by law.
  c. it is labeled with the caution: Federal law prohibits dispensing without prescription.
  d. it contains extensive information in the package.

Question 2

If the half-life of an antibiotic is 6 hours, the percentage of the original dose that will remain in a client's body 24 hours after a single dose has been administered is:
 
  a. 4. c. 2.5.
  b. 25. d. 6.25.

[SAUXC]

Answer to Question 1

ANS: C

Feedback
A Incorrect: This is a nonprescription agent.
B Incorrect: Controlled substances are legend drugs, but so are all prescription drugs.
C Correct: All prescription drugs are legend drugs.
D Incorrect: This is not the definition of a legend drug, nor does this statement define what is meant by extensive.

Answer to Question 2

ANS: D

Feedback
A Incorrect: In 24 hours, the client will have more than 4 remaining.
B Incorrect: The client will have 25 remaining after 12 hours.
C Incorrect: The client will have more than 2.5 remaining.
D Correct: As each 6-hour interval (one half-life) elapses, the drug concentration in the body is further reduced by 50 of what it was at the beginning of the interval.

[lbcchick]

Excellent

[xiazhe]

Gracias!